a bonobo humanity?

‘Rise above yourself and grasp the world’ Archimedes – attribution

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on power and sexploitation: the Epstein files

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a young woman who deserved so much better

What was I thinking about writing about? Oh yes, the Epstein thingy. I’ve been avoiding it, partly because I have, I think, a rather permissive attitude to sexuality (I blame bonobos), even though my own sex life has been largely a disastrous nullity, and in my seventieth year it’s not likely to improve.

But the Epstein matter isn’t about a kind of open-hearted – ‘let’s get it on so that we can be more of an all-for-one, one-for-all’ – society, which is, of course, the Musketeerian motto of bonoboism. It’s pretty well all about exploitation and power.

So let me for the purpose of this essay divide power relations into two forms – the power of males over females, and the power of the rich over the poor. In the WEIRD world, it seems to me, the power of males over females is slowly diminishing, but the power of the rich over the poor is growing faster than ever before. And the wealth of males is of course growing much faster than that of females. That’s to say, in the world of the super-rich, men like to have it all, and their quantum of wantum doesn’t vary much in its exponential increase.

We’re the financial apes, though of course there are many other distinguishing features, good and bad – the clothed apes, the language apes, the nationalistic apes, the nucleonic apes, the mass-murdering apes, the astronautical apes, and of course the most populous apes by far. It’s hard to keep up with it all, but what might ground us, as they keep us in touch with the rest of the animal world, are our sexual urges.

But these urges have long been a problem for us, or maybe not that long, maybe since the dawn of religion and its various tabus. How long ago was that? 15,000 years ago? 300,000? At some stage monogamy was born – a ‘this is my sole sexual partner’ notion, which somehow transmogrified into ‘I own this female’, or something similar. And attitudes to sex changed, perhaps long before the advent of clothing. Sex, or sexual play, could only be an adult thing – which rather undermines the notion of play.

There are so many perhaps unanswerable questions  – when did ‘civilisation’ begin? Did this supposed civilisation load us with endless sexual tabus? Yes, maybe, and it also gave us agriculture and cities and writing and more sophisticated weapons and a whole variety of artful activities. Perhaps, if we’d gone more the way of bonobos, we’d have been so absorbed in sexual fun that we’d never have stopped to contemplate the Meaning of Life, and the Creation of the World.

However, it seems that the super-rich, and their families, many of whom, like the offspring of monarchs and so-called ‘robber barons’, come under the category of the idle rich, are drawn to a bonoboesque lifestyle, if a rather more patriarchal and one-sided version of it. And, given our generally hypocritical public attitude towards sex, the victims tend to suffer as much as, or more than, the perpetrators when all is exposed. Virginia Giuffre’s suicide here in Australia last year is a tragic example.

It’s amusing, though, from this distance, to note how the so-called MAGA conservatives, with their generally negative thinking about abortion, feminism and anything resembling sexual licence, have been so keen to hide the sexual licence on steroids that are the Epstein files. But to be fair, the MAGA people are divided on the issue – those in power and in government are definitely in favour of suppression, while the rest are confused, to put it generously. Then again, if you take the expression ‘Make America Great Again’ seriously, confusion must be a fundamental aspect of your identity.

So where and how is this all going to end? It’s hard to imagine that the rich and very powerful are going to allow the mid-term elections, destined to result in a large non-conservative majority in Congress, to cause any more damage vis-à-vis the Epstein files than they already have. They will surely find a solution, and I’m sure they’re working on it right now, or have already worked it all out more or less to perfection. We will have to wait and see.

Written by stewart henderson

February 9, 2026 at 9:33 pm

a closer look at bonobos, enfin

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As this blog is called what it is, I’ve decided to read the entire, long, Wikipedia article on bonobos to get a more subtle and comprehensive feel for their society and how it shapes their individuality – though of course I’ll continue to write on completely different subjects. What I’m finding so far is that there are nuances, as you would expect, and as we find in human societies. And of course it would be the same with other social species – a member of the normally less dominant gender will, through proven capabilities or particular personality traits, be given a more prominent role than usual, and leadership of or status within the group is not solely based on gender. Ranking may have a degree of fluidity based on behaviour and alliances. Not all males are subordinate and not all females are bosses. Nevertheless, bonobos are definitely matriarchal – just as chimps are patriarchal, also with some fluidity.

It surprised me when I learned, some years ago, that bonobos have a ‘male philopatric’ society. The term conveys a gender distinction – the male stays ‘at home’ for mating and reproduction, while the female moves to another group for that purpose. This occurs in some human societies too. While visiting the Tiwi Islands just north of Darwin, I was told by our islander guide that he had just ‘lost’ his sister, who had moved to another tribal group to marry, meaning that their connection was permanently broken. His culture actually forbade him to have any more contact with her. So the early Catholic Church prohibitions against first, second, third and fourth cousins marrying, as described in Joseph Henrich’s historical account of the WEIRD world, as well as many long-held cultural traditions of Australasia and elsewhere, likely hark back to our hominid ancestors.

In any case, male philopatry doesn’t seem very matriarchal. There are of course good reasons for philopatry (male or female) in general, as well as good reasons for its opposite, male or female dispersal, which inevitably means that these behaviours, their causes and consequences, are widely disputed. I think I’ll return to this issue in another post.

A particularly interesting feature of bonobo culture, fairly recently recognised, is co-operation between two separate groups, or troupes. This was in the Congo’s Kokolopori Bonobo Reserve, which may, I think, represent a space between ‘the wild’ and ‘captivity’, and so may influence behaviour. From Wikipedia:

Over two years of observation, researchers witnessed 95 encounters between the groups. Contrary to expectations, these interactions resembled those within a single group. During these encounters, the bonobos engaged in behaviours such as grooming, food sharing, and collective defense against threats like snakes. Notably, the two groups, while displaying cooperative tendencies, maintained distinct identities, and there was no evidence of interbreeding or a blending of cultures. The cooperation observed was not arbitrary but evolved through individual bonds formed by exchanging favors and gifts. Some bonobos even formed alliances to target a third individual, demonstrating a nuanced social dynamic within the groups.

This contrasts importantly with the deadly clashes between groups of chimpanzees observed by Goodall and others.

Bonobos engage in tongue-kissing, the only non-human creatures observed to do so, at least thus far. And this brings us to sex, a difficult topic to write about, even in a blog nobody reads, given so many cultural and religious tabus swirling around it in human society. So, best just to be descriptive, without making comparisons to H sapiens. 

Bonobos aren’t monogamous, and they engage in sexual activity from an early age. It is mostly masturbatory, and indiscriminate, with the possible exception of mothers sexually engaging with adult sons. Heightened sexual activity often occurs when rich food sources are found, in which the masturbatory sex often occurs in large groups, increasing generalised bonding. Female masturbation is helped along by the fact that their clitorises ‘are larger and more externalised than in most mammals’. Well, here, comparison with humans is instructive:

… while the weight of a young adolescent female bonobo “is maybe half” that of a human teenager, she has a clitoris that is “three times bigger than the human equivalent, and visible enough to waggle unmistakably as she walks.

All quotes here are from Wikipedia, unless otherwise stated. The most common sexual combo is female-female. Their face-to-face, body-to-body interactions are referred to as genito-genital (G-G) rubbing, which is often accompanied by loud noises, hopefully of pleasure.

So, while female-female masturbation is the most practised sexual behaviour of the species, enhancing bonding against any male threats, male-male masturbation is also a regular thing:

The most common form of male–male mounting is similar to that of a heterosexual mounting: one of the males sits “passively on his back [with] the other male thrusting on him”, with the penises rubbing together because of both males’ erections

Clearly sexual activity is encouraged and valued as the most essential feature of bonobo society, and is practised in a variety of ways – penis-fencing, rump-rubbing, genital massaging, oral sex (among males) and, as mentioned, tongue-kissing. Adult-child sex is more common in males than females, though there’s no penetration. Is this because they’re avoiding pain, or because they know the connection with pregnancy? The general scientific consensus is that non-human species engage in sex based on instinct, hormones and such – that’s to say, more or less unconsciously without being aware of possible or likely consequences. I’m not entirely convinced, especially re our closest relatives, but how can this be tested? In any case, regardless of all this sex play, bonobo birth rates are no higher than those of chimps.

Unsurprisingly bonobo social relations are just as complex as those of chimps, and perhaps also humans, with personal animosities, rivalries and close friendships within and between genders, and the fact that infanticide in bonobo society hasn’t been observed isn’t proof that it hasn’t happened – after all, we’ve only known of the existence of bonobos for a little under a century. Still, bonobos are definitely different, and in what I would call an inspiring way. You could say that sex becomes a feel-good strategy, but also a way of diminishing any sense of male ownership of offspring. As Wikipedia puts it:

The strategy of bonobo females mating with many males may be a counterstrategy to infanticide because it confuses paternity. If male bonobos cannot distinguish their own offspring from others, the incentive for infanticide essentially disappears. This is a reproductive strategy that seems specific to bonobos; infanticide is observed in all other great apes except orangutans. Bonobos engage in sexual activity numerous times a day.

Anyway, enough of sex, let’s explore violence. Chimps, as mentioned, tend to be hostile to those not in their own troupe, and even patrol their own borders, looking for trouble. Very West Side Story. And yet, to my surprise, bonobos, are more violent in general.

In the wild, among males, bonobos are more aggressive than chimpanzees, having higher rates of aggressive acts, about three times as much. Although, male chimpanzees are more likely to be aggressive to a lethal degree than male bonobos which are more likely to engage in more frequent, yet less intense squabbling. There is also more female to male aggression with bonobos than there is with chimpanzees. Female bonobos are also more aggressive than female chimpanzees, in general. Both bonobos and chimpanzees exhibit physical aggression more than 100 times as often as humans do.

All of this sounds interesting, but ‘aggression’ might be a little more difficult to define than we think. In humans, for example, accusatory or bullying language, or the sharing of images, can be used aggressively without anything physical occurring. It has even been known to cause the victim to commit suicide. We have subtler and often more effective ways to make others suffer, and ‘non-physical’ aggression may have a physical, even deadly, impact. It is also a way of getting around laws prohibiting physical violence.

In any case, surely a major reason for the supposed greater physical aggression of chimps and bonobos, and doubtless other apes, compared to humans, is how we ‘count’ aggression. Is carpet-bombing physical aggression? Nuclear warfare? The wholesale slaughter of the Jews and the Congolese? The massacres of the ‘Crusades’? How can we not count remote, push-button slaughter, or starving people to death behind walls, or burning them to death in buildings, as physical aggression? Methinks there’s need for a rethink.

So let’s turn to something less controversial. Like all the great apes, bonobos pass the self-awareness mirror test, and it’s clear that the variations in their vocalisations have meaning, though whether they rise to the standard of a proto-language is a matter of definition. They also use many meaningful hand gestures.

A famous example of a bonobo being taught to communicate using a keyboard, and to respond effectively to whole sentences, is that of Kanzi:

Kanzi’s vocabulary consisted of more than 500 English words, and he had comprehension of around 3,000 spoken English words… Kanzi is also known for learning by observing people trying to teach his mother; Kanzi started doing the tasks that his mother was taught just by watching, some of which his mother had failed to learn….

Kanzi was also taught how to make simple stone tools, though he found a method of making them in his own bonoboesque way. There seems no doubt that effective rapport between bonobos and humans will benefit both species.

Finally, there’s the ecological importance of bonobos. They’re essentially one of the two apex species of their region, the other being elephants. Both species are frugivorous, and their ecological role is vital:

It is estimated that during its life, each bonobo will ingest and disperse nine tons of seeds, from more than 91 species of lianas, grass, trees and shrubs. These seeds travel for about 24 hours in the bonobo digestive tract, which can transfer them over several kilometers (mean 1.3 km; max: 4.5 km), far from their parents, where they will be deposited intact in their faeces. These dispersed seeds remain viable, germinating better and more quickly than unpassed seeds. For those seeds, diplochory with dung-beetles (Scarabaeidae) improves post-dispersal survival.

Diplochory means two-phase seed dispersal, using more than one vector or carrier.

Anyway, I think that’s more than enough info for one post. The Wikipedia article on bonobos makes for a very solid book chapter, with 178 references, so far. And it ends nicely with informing us all of the annual World Bonobo Day, established in 2017. No prizes should be given for guessing the date!

References

https://en.wikipedia.org/wiki/Bonobo

Joseph Henrich, The WEIRDest people in the world: how the West became psychologically peculiar and particularly prosperous, 2021

https://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2011.05232.x#:~:text=Abstract,contrasts%20between%20and%20within%20species.

Written by stewart henderson

November 27, 2025 at 7:37 pm

on sex, consent, offspring and bonobos

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So all this Epstein/Maxwell/Trump stuff has been dominating the news, even here to some extent, and it obviously raises questions more generally about sex, power and all that pabulum. In my novel In Elizabeth, published centuries ago, I described how the main character, Danny, was, on his 16th birthday, asked by his 14-year old girlfriend, Anne-Marie (let’s call her), if he wanted to have sex with her. A gift. She was the most beautiful girl Danny had ever seen, and she assured him that she had done it before. So they did it, on Anne-Marie’s parents’ double bed. The whole thing lasted only a few minutes, with the removal of as few clothes as possible, and was interrupted by her little brother, whom she was baby-sitting. “Ummm, I’m telling mum’, he said. Fortunately, he was talked out of it, and yes, this was autobiographical. 

I had no idea at the time whether what we were doing was legal or not, and frankly couldn’t have cared less. I should also say that my sex life was pretty well all downhill from there. 

Much later, after this novel was published, a fellow teacher, who had read it, questioned me about this sex scene. Was it really true, she asked, looking mildly disturbed. That was perhaps the first time I ever considered the ethics or legality of the situation. Even so, I didn’t bother to look into it. As to Anne-Marie, very shortly afterwards, she abandoned me for a much bigger kid who, seeing her beauty, kept forcing me into ‘play fights’ in which, of course, he bested me. I was never built to be an alpha (though my studies have taught me that the alpha doesn’t have to be the biggest). I never saw Anne-Marie again. I hope she did all right, she was nice.

So now I’m looking into those legalities, and I’ve learned about Romeo and Juliet clauses. AI again:

In Australian states with Romeo and Juliet clauses, also known as close-in-age exemptions, consensual sexual activity between teenagers of similar ages is not criminalised, even if they are below the general age of consent. These clauses exist to recognize that adolescent sexual development is a natural process. The specific age differences allowed under these clauses vary by jurisdiction, but generally allow for a maximum age gap of two years.
 
Sounds like I’m in the clear – but no, South Australia, where I lived and still live, is not one of the Romeo and Juliet states. How unromantic! Luckily, nobody reads this blog, so I’m pretty safe. 
 
Anyway, enough about me, and back to the more general picture, in the USA and elsewhere. 
 
Well, first Australia. The age of consent varies here, state by state. It is 17 here in South Australia, so both Anne-Marie and myself are – criminals? Yes, it’s back to we two again. I’m not sure our behaviour rose to that level, and in any case there are ‘statutes of limitations’, though apparently they don’t apply to serious crimes such as murder or sexual assault. Oh dear, did we sexually assault each other? Well, yes, but not very hard. But they don’t call it banging for nothing….
 
Okay, I’ll leave my own case behind, it’s getting very stressful. The age of consent is 16 in all Australian states except SA and Tasmania, where it’s 17, and looking into it more closely, these issues and their legality and the culpability of each party, or otherwise, are decided upon on a case by case basis, as they should be, with issues of coercion, age difference, knowledge aforethought and the like being taken into account. Of course, considering what’s happening in other parts of the WEIRD world, we shouldn’t take our current more or less reasonable laws, in this area and in others, for granted.  
 
Now consider Germany. The age of consent there is 14. But firstly, what does ‘age of consent’ actually mean? Well, back to Australia again. The federal government’s ‘Institute of Family Studies’:
the legislation in all states and territories states that children and young people below the age of consent are not considered by law to have the capacity to consent, even if the other requirements for consent appear to be met (e.g. understanding what activity they are agreeing to, voluntarily agreeing to or suggesting sexual activity without being coerced or intimidated, communicating their agreement)

So, considering that both Anne-Marie and I were under 17, we didn’t have the legal capacity to consent to what we both consented to, but since there was no sexual assault involved, the act, which occurred a little over 53 years ago, would not be pursued in criminal or civil terms due to statute of limitations provisions. And yet we did both consent, being really quite capacious for our age, if not quite legally.  

Again, the age of consent in Germany is 14, but understandably there are conditions attached, relating to age differences and any sign of coercion. But what I remember reading, and I do hope it’s true, is that sex education is a vital part of their school curriculum. This of course should be a feature of every country’s education system, as well as the availability of contraceptives. 

This isn’t an issue for bonobos of course. Humans can get pregnant all year round, unlike other apes and animals generally. Can’t something be done to make us less fertile? And while we’re at it, to make us less combative and more bonobosexual? Wouldn’t it be great if such a word caught on. Join the bonobosexual club. Mutual masturbation is their theme, and they seem to be built for it. Meanwhile, in those parts of humanity turned backward by religion, it’s a crime to have any sex outside of marriage, that weird invention. 

Not a problem in Elizabeth, though, the town of my youth. The problem there was ignorance, or innocence. Young teens following their instincts, then getting pregnant. A massive, life-changing experience. That was in the seventies, and I can only hope that teachers and parents are now educating their kids about rumpy-pumpy consequences.  

Anyway, out of all this, the mystery of our unique proneness to pregnancy (the Guinness Book of Records claims the highest number of births to one individual is 69, in 27 confinements – as if – and there are claims almost as unbelievable), is something I’d like to explore. Bonobos and chimps generally give birth to no more than five or six little ones in a lifetime. It’s all to do with hormones, pheromones and being ‘in season’. Why are human animals so different? When did that happen? What about Neanderthals, and earlier hominins?

To be continued, perhaps…

Written by stewart henderson

August 6, 2025 at 6:21 pm

Touching on the complexities of breeding behaviour – introductory…

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It does seem that the more we examine male-female relations historically and culturally, in terms of matriarchy and patriarchy, matrilineality and patrilineality, and patrilocality and matrilocality, we find complexity, variety and riddles. ‘Why’ questions. And not just with humans. Why do young female bonobos move to another group or troupe? To avoid interbreeding, I’m told. But how do they know to do this, and why the females?

So there’s another term I should learn – philopatry. Whether male or female, it means staying put in your natal zone for breeding. It’s always explained in terms of heightening genetic diversity, but how did apes know about this, including human apes in earlier times? When I try to research this, I always come up with what we, as post-Darwinians, know, but what do bonobos know? 

Inbreeding avoidance, that’s the term. My culture tells me not to mate with my sister or brother. We’re told to be disgusted by it, and to call it ‘incest’. There are religious taboos of course, and as we grow up we learn about birth defects – but that knowledge comes up way afterwards. Interestingly, Joseph Henrich’s The WEIRDest people in the world tells us that the Church, when it was all powerful in medieval Europe, eventually went as far as banning marriage between fifth cousins! 

But I’m more interested here in the knowledge than the coercion (I’ve just started reading Darwin’s Descent of Man – wondering if he had any thoughts on this). So here’s something from Wikipedia:

The inbreeding avoidance hypothesis posits that certain mechanisms develop within a species, or within a given population of a species, as a result of assortative mating and natural and sexual selection, in order to prevent breeding among related individuals. Although inbreeding may impose certain evolutionary costs, inbreeding avoidance, which limits the number of potential mates for a given individual, can inflict opportunity costs. Therefore, a balance exists between inbreeding and inbreeding avoidance. This balance determines whether inbreeding mechanisms develop and the specific nature of such mechanisms. 

So what is assortative mating? Well, in human terms, it’s mating based on physical or phenotypic similarity, though a distinction has been made between phenotype and social congruence – yes, we like to mate with individuals as beautiful as ourselves, but also with those with whom we share our socio-political values (three criteria are given – socio-economic background, ‘race’ and/or ethnicity, and religious beliefs, or not). 

Such mating, though, doesn’t rule out incest – especially when extended to fifth cousins. In fact it might encourage it – think, in an extreme case, of a pair of beautiful same-sex loving monozygotic twins. But then, that’s not breeding, that’s just sex. 

So the danger of assortative mating is that it might reduce the diversity that may be of value to a species in tough times. Such mating surely follows natural inclinations, and yet, with bonobos, chimps, and some human cultures (I know the Tiwi Islanders follow this practice), natal dispersal – yet another term – occurs as a method of  inbreeding avoidance, and, with humans, it becomes a fixed cultural thing. I suppose it has the value of raising phenotype above genotype. Again, though, I wonder about how we know about genotype connections. I have cousins, like most humans, but I only know they’re my cousins because I’ve been told so. Language is rather useful in this regard. But are there other ways of knowing, utilised by our bonobo and other cousins? Do hormones/pheromones play a role? 

This question – how we know, or even how we sense, that we should not mate with x, seems to be mostly avoided online. The Wikipedia quote above comes close, in telling us that assortative mating may encourage inbreeding, but there must surely be some mechanism for knowing who to avoid sexually, and perhaps even why, if even zebrafish can manage it. I mean, it must be something basic, visceral, chemical. This is extremely frustrating. Citing ‘familiarity’ as a motive for inbreeding avoidance makes no sense to me whatsoever. To me it must be something far more basic, something which doesn’t require ‘thought’, and the activities we and other species engage in must constitute a quasi-cultural layer on top of that basic instinct. 

So what about those zebrafish? An article from Animal Behaviour in June 2006, entitled “Kin recognition and inbreeding avoidance in zebrafish, Danio rerio, is based on phenotype matching”, sounds promising, but think about phenotype matching. Matching with what? It seems to be about having a similar phenotype, or ‘look’, which is likely to match with similar genotypes. Here’s the article’s introduction:

Differentiating kin from non-kin enables organisms of many species to allocate resources or altruistic behaviour towards related conspecifics and to avoid mating with close relatives. Kin recognition mechanisms can vary among species and may reflect the social environment. Learned familiarity with nest or shoalmates may serve as a good indication that individuals are related, as long as the social system is sufficiently stable to avoid intermingling of unrelated individuals with siblings. Phenotype matching allows for recognition of even unfamiliar kin because individuals establish an olfactory, visual or acoustic template for their kin during early development and compare this template to cues from unfamiliar individuals later in life. We tested which kin recognition mechanism is used by zebrafish and we found that the preference for kin changes with sexual maturity. The olfactory preference of laboratory-bred juveniles and reproductively active adults were tested in an odour choice flume. Juveniles of mixed-sex groups spent more time on the side of unfamiliar kin than unfamiliar non-kin, indicating that kin recognition and preference are based on a phenotype matching mechanism.

A ‘conspecific’ is simply a member of the same species, so I’m not sure what the difference is here between a ‘related conspecific’ and a close relative. What this opening sentence appears to be saying is that we feel friendly and altruistic towards our relatives and avoid mating with them, which seems pretty contradictory. The sentence ‘Kin recognition mechanisms can vary among species and may reflect the social environment’ is also unhelpful. Am I asking or expecting too much? What I’m trying to get at is the physical basis of cultural taboos that we know to be useful/essential to avoid inbreeding. And it’s probable that zebrafish, however interesting, are not going to provide the solution I want, being as I’m human, all too human. 

So let’s look at a concept known as the Westermarck effect, about which I’m a bit dubious (at first glance). It was first touted in a late 19th century book by the anthropologist Edvard Westermarck, and I note that Wikipedia doesn’t give it a lot of attention, which is not a good sign. Another term for it is ‘reverse sexual imprinting’, and it hypothesises that ‘people tend not to be attracted to peers with whom they lived like siblings before the age of six’. One has to wonder why of course, but regardless of causes, there is some evidence for this in the Israeli kibbutz system. From Wikipedia:

In the case of the Israeli kibbutzim (collective farms), children were reared somewhat communally in peer groups, based on age, not biological relations. A study of the marriage patterns of these children later in life revealed that out of the nearly 3,000 marriages that occurred across the kibbutz system, only 14 were between children from the same peer group. Of those 14, none had been reared together during the first six years of life. This result suggests that the Westermarck effect operates from birth to at least the age of six.

This is certainly interesting but it doesn’t explain why, as well as suggesting that it’s not an incest taboo. Is there some physio-chemical something that operates, on humans, other apes, birds, fish, etc, to reduce inbreeding? And if so, what exactly is it? It kind of astonishes me that bonobos, chimps and humans send or push individuals, whether male or female, out of their social group to a ‘stranger’ group when they reach breeding age, without knowing why. 

So, enough for now. To be continued…

References

https://en.wikipedia.org/wiki/Inbreeding_avoidance

https://www.sciencedirect.com/science/article/abs/pii/S0003347206001096#:~:text=Pages%201371%2D1377-,Kin%20recognition%20and%20inbreeding%20avoidance%20in%20zebrafish%2C%20Danio%20rerio,is%20based%20on%20phenotype%20matching&text=Differentiating%20kin%20from%20nonkin%20enables,avoid%20mating%20with%20close%20relatives.

https://en.wikipedia.org/wiki/Westermarck_effect

Written by stewart henderson

June 3, 2025 at 7:22 am

more on ‘evolutionary psychology’, humans and bonobos

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bonobo kids have plenty of baby-sitters

So Ryan Ellsworth’s attempt to dismiss the possibility that bonobos can serve as any kind of model for sexual and political behaviour in humans has obviously got my dander up, as this is my third post on the matter, and it has renewed my interest in searching for the origins of patriarchy, and in how we can reduce patriarchal attitudes, at least in the WEIRD world – and especially among the soi-disant intelligentsia.

One important resource I’ll be relying on in this exploration is Angela Saini’s The patriarchs: how men came to rule, but I’ll start again with Ellsworth’s critique of Block, and in effect others who advocate ‘free love’ and other such fantasies through ‘misinterpreting’ bonobo culture, as well as advocating that we [i.e. women] ‘release our inner bonobo’. Of course there seems to be some naïveté in Block’s praise of bonobos, which I find quite forgivable, unlike Ellsworth: 

It is egregiously naïve to conclude that, “bonobos reveal that an incredible range of sexual diversity is normal for animals like us” (p. 99, emphasis in original).

The fact is that humans do engage in an incredible range of sexual diversity – though not all at the same time. On the other hand, humans, especially under patriarchal religion over the last few millennia, have sought to stifle sexual diversity with a vengeance, especially among women. And considering that writing to any copious degree has only existed for a few millennia, our sexual practices, dating back to our primate ancestors, are something of a black box – though orgiastic practices get a mention here and there. 

Of course one of the obvious barriers to ‘sexual licence’ in humans is clothing – making ourselves ‘decent’, which we learn in childhood, becoming early aware that there are parts of our bodies that it would shock others to see. But would we be shocked if we weren’t told, virtually from birth, that we should be shocked? If we were taught that clothes were solely for decoration and warmth, and were entirely optional? And when did this clothing business start? We can give some sort of vague starting date – say 100,000 years ago – but we also know that Australian Aborigines were shamelessly wearing nothing, or nothing much, when we started wiping them out with guns and germs a little over 200 years ago. So, it was culture wot done it. There seem to have been a mixture of factors – to wrap someone in clothing makes them unavailable to the general public, in sexual terms, and it also becomes a form of decoration, conveying status, or clubbish belonging – business suits, cycling togs, pyjamas (well, maybe not) and haute couture, whatever that may be. 

So in modern Australia Aboriginal people will be arrested for indecent exposure if they were wear nothing but strings around the waist for carrying dilly bags and such. This reminds me of an Aboriginal man, of impressive physique, who used to walk up and down a busy street near my home wearing nothing but the skimpiest of budgie smugglers – a fascinating clash of manliness and cultural cringe, or something like that. 

So, clothing – the fact and the concept – has played a major inhibiting role. There’s also monogamy, which, for most of its history has been about male ownership of females – though, in some societies the very upper classes got away with polygyny, as described in Joseph Henrich’s The WEIRDest people in the world, and also in Korean historical dramas (though they present a rather tame version for modern susceptibilities).  

Ellsworth claims that “Sex differences in promiscuous impulses are minimized in Block’s account”, which is an odd remark, because in order to know whether such sex differences are minimised, or maximised, we need to know what they are. And surely this is more an individual thing than a sex/gender thing. But clearly, Ellsworth is claiming that he knows. It’s funny that, just yesterday, I received a ‘shorts’ video on my feed – presumably ‘shorts’ being a rival to ‘tik-tok’, in which a young woman was admitted to hospital after having sex with 500+ men in one day. According to the video it was all her idea, but she reflected that it was probably ‘a bit much’, as she’d never had sex with more than 29 men in one day before – or was it 59, I’m not sure, and these ‘shorts’ videos disappear as suddenly as they arrive – one day of fame at most. And of course, whether this was promiscuity or an obsession with breaking records is unclear. Anyway, here’s more from Ellsworth, and I’ll make it the last:

Block refers to babies to care for, and reputations to protect, but does not seems to understand the significance of these two things for understanding human sex differences in sexual desire. Perhaps she privately does, but to acknowledge the significance of these forces on the evolution of human sexuality would severely compromise her arguments, as it demands recognition of the fact that women are not expected to have desires for sexual variety and quantity identical to men.

I may have commented on these remarks before, but they’re worth revisiting. Caring for her baby is a mother’s role, but assistance in this task is varied depending on culture. Bonobo females help with birth, supporting both mothers and infants in the post-partum period. Bonobo males also play with and support young infants. The degree to which humans do this is dependent on culture, not to mention class, with wet-nurses and such. As described in previous posts, the pressure in patriarchal societies on women’s sexual behaviour, regardless of their proclivities, has been enormous and often life-threatening. This is all about culture, not evolution in the Darwinian sense.

The sexism in Ellsworth’s paper is obvious to me, and I assume, or hope, that others have pointed this out before me, as it was published back in 2015. Then again, evolutionary psychology doesn’t have a great reputation, so maybe it’s best ignored. Meanwhile, Angela Saini’s work is much more recent and much more interesting, so that will be my focus in the immediate future.

References

Angela Saini, The Patriarchs: how men came to rule, 2023

https://journals.sagepub.com/doi/10.1177/147470491501300115

Joseph Henrich, The WEIRDest people in the world: how the west became psychologically peculiar and particularly prosperous, 2020

Written by stewart henderson

May 23, 2025 at 9:54 am

on gender, and bonobos

with one comment

So there seems to be a lot of noise about gender issues these days, and it has been a topic of much interest to me from pre-pubescent days. I wrote in my novel In Elizabeth about how, even in primary school, I stood at the back of my class line during ‘school assembly’ and surveyed my classmates in terms of ‘likeability’, not so much in sexual terms, though there was probably an element of that. It interested me to think, or feel, that those who attracted me least were the ‘girly girls’ and ‘the boysy boys’, even if I could only judge from the clothes they wore, which may well have been chosen by their parents. But also something in the way they moved, which attracted or repulsed me like no other school-kid. 

Later, into my teens, with schooldays happily left behind, I discovered Bowie, and Lou Reed’s Transformer album, and played deliciously transgressive games with lipstick and stockings and a tucked-away penis. It was a phase, you might say, but I do recall that in the pre-pubescent era, I found boys who were just as physically attractive as girls, an attraction that faded with the appearance of facial hair and signs of muscularity. Broken voices might have broken the spell too.  

One term that I never had to consider, of course, was the term ‘trans’, a term I’m still not sure that I understand, hence this investigative piece. But before I embark on that prickly issue, here’s a thought.

Do dogs know that they’re male or female? Cats? Birds? Yes, some get pregnant, or lay eggs, while other don’t, and that’s how we distinguish them, as well as anatomically, but… Is it a matter of consciousness, aka the hard problem of philosophy? Of course ‘AI’ provides an answer, which is more or less the one I would give. Gender as we know it is a social construct, as well as an aspect of language, but with other creatures it’s more about biological cues – pheromones perhaps, as well as subtle physiological differences (perhaps not so subtle for them). Chimps/bonobos seem to recognise those of their own sex, not just for sex but for hanging out, for fighting and so on. And it seems that, even with our close cousins, there are girly girls and boysy boys, as Frans de Waal noted in his book Different, particularly in his description of the gender-nonconforming female chimp, Donna, brought up in the Yerkes Field Station in Atlanta, USA:

Donna grew up into a robust female who acted more masculine than other females. She had the large head with the rough-hewn facial features of males, and sturdy hands and feet. She could sit poised like a male. If she raised her hair, which she did more often the older she got, she was quite intimidating, thanks to her broad shoulders. Her genitals were those of a female, however, even though they were never fully swollen. Female chimpanzees, at the peak of their thirty-five day menstrual cycle, sport inflated genitals. But after Donna passed puberty, hers never reached the shiny maximum size that announces fertility. The males were barely interested in her and refrained from mating. Since Donna also never masturbated, she probably didn’t have a strong sex drive. She never had offspring. 

Frans de Waal, Different: what apes can teach us about gender, pp 50-51

 

de Waal spends the next half dozen pages describing Donna in terms of sex (physical elements) and gender (behaviour), which again reminds me of schooldays. Donna was big for a female, just as some human females are taller and heavier than the average male, her calling voice was lower than most females’, and she engaged in hooting, swaggering behaviour with other males, though she was never violent. As with humans, male chimps are hairier than the females, but Donna was hairier than most. In spite of her eccentricity, her tendency to hang out with the males and her unusual appearance, she was well-accepted by her troupe. 

So was Donna “trans”? de Waal asks this question himself:

Individuals who are born as one sex yet feel they belong to the opposite sex are known as transgender. Transgender humans actually prefer to turn this description around and prioritise their felt identity. They were born as one sex but found themselves inside the body of the other. We have no way of applying this to Donna, however, because we can’t know how she perceived her gender. In many ways – her grooming relations with others, her non-aggressiveness -she acted more like a female than a male. The best way to describe her is perhaps as a largely asexual gender-non-conforming individual. 

Ibid, p54

 

I mentioned schooldays. A fond memory from when I was around nine years old was of a class-mate, a big strapping thunder-thighed girl who would lie on her back on the school’s grassy knoll and urge us to run and jump on her. She’d catch us, rough us up a bit, then toss us to one side ready for the next victim. As the smallest kid in the class I was an easy toss, and I loved it. I found her totally admirable, perhaps also because she was the smartest kid in my class – along with myself of course. 

The point here, I think, is acceptance of difference – which is what de Waal’s Different is all about. In some ways the ‘trans’ thing is about our need to categorise, and our obsession with being hard and fast about those categories. I recall my enthusiasm when unisex toilets became a thing a couple of decades ago, but it doesn’t seem to have caught on, really, though I do know of a few people who subscribe to gender fluidity, and ‘men who want to be men’ and ‘women who want to be women’, are types I prefer to avoid, largely because they tend to want to impose those hard and fast categories on others. But in researching ‘gender fluidity’ I again find this human tendency to categorise gets in the way, with ‘gender fluid’ being described as it own category that requires explaining, like some medical/physiological/psychological condition, as if people who are this way worry about being abnormal in some sense, rather than rarely giving it a moment’s thought. 

And yet, what with the patriarchy that is still with us, abetted by all the major religions, gender in a general sense is something we need to face. So I will leave transgender and gender reassignment issues, which are purely human ones, for another piece, and focus for now on sex, or gender, and power, which is an issue for all complex social creatures.

de Waal has a chapter in his book, ‘Bonobo Sisterhood’, which compares those apes with their chimp cousins and neighbours. The Lola ya Bonobo sanctuary near Kinshasa, capital of the embattled Democratic Republic of the Congo (DRC), is home to over 70 bonobos, many of them damaged orphans rescued from poachers and traders. This has made the sanctuary a difficult place for observing the natural life of bonobos, since many of them have experienced injury, separation from parents and other disruptions, including leading pampered lives in human households. One female bonobo who had been brought up with humans was quite bewildered when brought to the sanctuary, where other females greeted her with kisses and presenting of genitals for hoka-hoka, also known as genito-genital (GG) rubbing, a form of female sexual bonding that is key to their collective control of males. Not having been brought up in a bonobo environment, this female took some time to become accustomed to the ‘natural’ behaviour of her kind. Another bonobo had spent his early years in a gorilla enclosure, and was accustomed to making ‘gorilla’ noises and gestures. He was quite bewildered when female bonobos made advances, and didn’t recognise their genital swellings as anything sexual – though he eventually worked it out.

The point here is that there are social cues about sex and behaviour as well as what we might consider natural cues. And, as Donna the chimp has shown us, there may be wide differences in sexual behaviour within species, and it might be well for we humans to note the tolerance within the chimp community shown to Donna’s quasi-male behavioural traits. 

de Waal provides a description of bonobos, particularly in contrast to chimps, that I’ll set down here to remind myself, more than anyone, of the difference:

Chimps look as if they work out in the gym every day. They have large heads, thick necks, and broad, muscular shoulders. In comparison, bonobos have an intellectual look, as if they spend time in the library. They have slim upper bodies, narrow shoulders, thin necks, and elegant piano-player hands. A lot of their weight is in their legs, which are long and thin. When a chimpanzee knuckle-walks on all fours, his back slopes down from his powerful shoulders. A bonobo, in contrast, has a perfectly horizontal back because of his elevated hips. When standing on two legs, bonobos straighten their back and hips better than any other ape, so that they look eerily human-like. They walk upright with remarkable ease while carrying food or looking out over tall grass. 

Frans de Waal, Different: p 109

 

 There’s more, and you get the impression that de Waal is very much captivated by the species. He even argues that their anatomy is closer to Lucy, our Australopithecus ancestor, than is any other of the great apes. It’s true that they’re more arboreal, due to the environment in which they’re confined. They’re also more group-oriented than chimps and more neotenous, according to de Waal. That’s to say, they preserve childhood or juvenile traits into adulthood – as do humans, with our love of play of all kinds. Their sensitivity may be attested to by a poignant story related by de Waal. A group of bonobos were sent to the Hellabrunn Zoo in Munich in the 1930s, just around the time that they were recognised as a separate species. Their uniqueness was noted by the first experts who studied them – ‘The bonobo is an extraordinarily sensitive, gentle creature, far removed from the demoniacal Urkraft [primitive force] of the adult chimpanzee”. But, as de Waal relates:

Sadly, the Hellabrunn bonobos died on the night in 1944 when the World War II allies bombed Munich. Terrified by the noise, they all succumbed to heart failure. That none of the zoo’s other apes suffered the same fate attests to the bonobo’s exceptional sensitivity.

Ibid: p 111

 

It seems to me – no doubt many would disagree – that bonobo sensitivity bears some relation to their matriarchal and more generally bonding culture. As de Waal and others point out, bonobos really are very very sexual, and it has nothing to do with reproduction, the rate of which is no greater than chimps. And it really is a ‘make love not war’ mind-set, with sexual closeness, especially among females, acting against serious violence, though they can be as rough-and-tumble in their play as their chimp cousins. de Waal, in his bonobo chapter, describes how reluctant the scientific community were to accept both bonobo matriarchy and bonobo sexual enthusiasm. I find this community’s reluctance, even today, to emphasise the matriarchy and sexuality of this closest relative of ours, to be a source of great frustration. Bonobos deserve our attention – and will repay it in spades – not just by the fact that they’re matriarchal but in the way they’ve become matriarchal, in spite of a slight sexual dimorphism in the males’ favour. Diane Rosenfeld’s The Bonobo Sisterhood is a start, but it requires the attention and activity of both females and males to move us in the right direction. Et ça va prendre beaucoup de temps, malheureusement.

References

Frans de Waal, Different: what apes can teach us about gender, 2022

Diane Rosenfeld, The bonobo sisterhood, 2022

https://www.bonobosisterhoodalliance.org

 

 

Written by stewart henderson

April 22, 2025 at 4:24 pm

Eartha Kitt – the sexiest matriarch?

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When you ain’t got nothin’, you got nothin to lose

Bob Dylan, Like a rolling stone

Eartha Kitt, 1927-2008

So before I go onto the second lecture on immunology, a break to write about a theme I’ve neglected for too long – interesting women as models for a future matriarchy. So the other night, in a slightly boozy session with friends, one of them happened to mention his interest in Eartha Kitt, whom I knew only as something of a sex icon who had the obvious bon goût, and the most unAmerican ability, to sometimes sing in la belle langue. So we spent the next pleasant hour or so sampling her most playful work on Youtube. 

Before that session I knew vaguely of Eartha Kitt (the earthy kitten?) as perhaps a comedienne of sex, who sang purrrfectly absurd songs sending up and celebrating the world’s most delicious vice. But…. well, let’s find out more.

She was born in the tiny town of North (or on a nearby plantation), in South Carolina, and having checked out what information is available online about the town, I find no mention of surely one of its most famous daughters. But then, her beginnings weren’t auspicious. Her father is basically unknown – some say a plantation owner’s son, others say a local white doctor. Could it be that her success had to be attributed to ‘white genes’? Others, or maybe the same conjecturers, say that she was the product of rape. In any case, her mother (who was of mixed Cherokee and African descent) began a relationship with a black man, who rejected Eartha as being ‘too white’. So, not exactly your standard middle class or even working class beginnings. 

So, just a few lines on that earthy name of hers. Eartha really was her birth name, and her family name was Keith, (or Keit) or at least that was the surname of her mother, Annie Mae Keith, who died when Eartha was still quite young. The inspired switch from Keit/h to Kitt seems to have been Eartha’s own. 

But more on her unpromising beginnings. She was sent away to be raised by a relative, one Aunt Rosa, ‘in whose household she was abused’, according to Wikipedia. The nature of the abuse isn’t mentioned, but it’s clear that life wasn’t easy for her in this period. She recounted in a later interview that ‘we’ were near starvation at this time, though who exactly she was referring to is unclear. I may have to read one or all of the three autobiographies she has written…

The difficulties of her early years are, to me, made clear by the fact that she wasn’t even sure who her mother was, let alone her father. According to Wikipedia, 

After the death of Annie Mae, Eartha was sent to live with another close relative named Mamie Kitt [okay, so that’s where the name came from], who Eartha later came to believe was her biological mother, in Harlem, New York City, where Eartha attended the Metropolitan Vocational High School (later renamed the High School of Performing Arts).

No date is mentioned for this big city move, clearly a decisive event, but it was likely in the early 1940s. According to her daughter, this was undoubtedly the essential move of her life, getting her away from the bigotry of the South, where she was discriminated against by both Blacks and Whites. Interestingly, she wasn’t aware of her own birth day, until a group of students from her home state of South Carolina unEarthaed her birth certificate in 1998. She was born on January 17, 1927. Wikipedia next states, without evidence, that ‘she began her career in 1942’, whatever that means. After all, she was only 15 at the time. In any case, she’d clearly shown enough talent to appear ‘in the 1945 original Broadway theatre production of the musical Carib Song’, though not in a major role. In the 1950s she recorded a number of songs and gained her enduring reputation as a tongue-in-cheek ‘sex kitten’, with a very distinctive and, to me at least, very unAmerican, voice. Speaking of which…

She toured Europe as a dancer and vocalist from 1943, an extraordinary opportunity for a young teen, where she also proved to be skilled at picking up languages – la langue d’amour especially, but according to Wikipedia she was able to sing in eleven of them and to speak more or less fluently in four. C’est ridicule ça! When as a youngster I first heard her singing in French, I thought she was a native, or from the French Carribbean (if I’d heard of such a place) – at least, not a United Stater. In any case, such polyglotism seems freakish to me, in the best possible way. But French was the foreign language that had the most influence on her early career. Apparently she’d been touring with the Katherine Dunham dance troupe and was offered work in a Paris nightclub, which she accepted, becoming fluent in the language much quicker than I ever could. Bitch!

So when she eventually returned to the USA, reputation enhanced, she came to the attention of one Orson Welles, and made her acting debut in a Welles adaptation of Faust, as Helen of Troy (of course). This was in 1950, and she want on to record songs such as C’est si bon, Santa Baby and I want to be evil in the early fifties, establishing her reputation as an earthy sex kitten. Or should I say tiger, panther, bonobo…?

So this is a real rags to riches story, of a talented and enterprising young girl from the most unpromising of backgrounds, which, frankly, moves me more than I can say. And she has all the best bonobo qualities, though much better looking, at least from a human perspective. 

It’s interesting – and very USA it seems – that a performer who, in a most unAmerican voice, performed I want to be evil and a deliciously slurpy (but strangely affecting) Lilac wine in her younger days, to grand acclaim, would be ‘outlawed’ for her sympathy for the young American troops being sent to an unnecessary war in Vietnam (not to mention the Vietnamese and Cambodian people caught up in the slaughter). It’s likely her early touring life gave her more of an internationalist, humanist perspective. And she spoke often about ‘falling in love with yourself’ as a prerequisite to a happy and fulfilling life, which is, I think, a more sophisticated view than it might sound. Only she would know how many intimate relations she had, but not too many, it seems. She married only once, relatively briefly, a union which produced her only child, Kitt McDonald, who is devoted to her memory. 

I feel quite privileged now to have discovered the life of this fascinating and worthwhile person, who was more than just a unique polyglot entertainer. Hell, I may as well quote some of the Wikipedia material on her activism:

Kitt was active in numerous social causes in the 1950s and 1960s. In 1966, she established the Kittsville Youth Foundation, a chartered and non-profit organization for underprivileged youths in the Watts area of Los Angeles. Kitt was also involved with a group of youths in the area of Anacostia in Washington, D.C., who called themselves “Rebels with a Cause”. She supported the group’s efforts to clean up streets and establish recreation areas in an effort to keep them out of trouble by testifying with them before the House General Subcommittee on Education of the Committee on Education and Labor. In her testimony, in May 1967, Kitt stated that the Rebels’ “achievements and accomplishments should certainly make the adult ‘do-gooders’ realize that these young men and women have performed in 1 short year – with limited finances – that which was not achieved by the same people who might object to turning over some of the duties of planning, rehabilitation, and prevention of juvenile delinquents and juvenile delinquency to those who understand it and are living it”.  

I wish I’d been there to hear her! Articulate and precisely on point – this approach reminds me of what I’ve been reading in Rutger Bregman’s Humankind. Treat people like shit and you’ll get nowhere with them. Treat them as better than they have been and they will learn to love themselves and their environment more. 

Kitt was also a member of the Women’s International League for Peace and Freedom, formed during World War 1 and still  in existence. She was under CIA surveillance from 1956, further proof of her bonafides as an international humanist. And there’s more:

Kitt later became a vocal advocate for LGBT rights and publicly supported same-sex marriage, which she considered a civil right. She had been quoted as saying: “I support it [gay marriage] because we’re asking for the same thing. If I have a partner and something happens to me, I want that partner to enjoy the benefits of what we have reaped together. It’s a civil-rights thing, isn’t it?”

Indeed. With the current turn to conservatism, intolerance and patriarchal attitudes, Eartha Kitt’s attitude and example, including even her sexiness, reminds me of the purpose of this blog (she surely would’ve loved the bonobo example). Vive Eartha Kitt! I wish I could’ve met her. 

References

https://en.wikipedia.org/wiki/Eartha_Kitt

https://en.wikipedia.org/wiki/Carib_Song

Written by stewart henderson

March 31, 2025 at 6:30 pm

All we are saying, is give bonobos a chance….

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Just following on from my last post, one of the difficulties humans have in comparing their society, or their plethora of societies, to bonobos is the fact that – we’re human. Being inside that particular species, we don’t really see ourselves as a species at all, in spite of all the efforts of Darwin and so many others. 

This is a perhaps deceptively important point. When we think of chimps and bonobos, we think of a species of primate, vaguely considered as existing in troupes, with certain general characteristics such as male philopatry (the males stay put, while the females leave for other troupes around adolescence), and alpha males in the case of chimps, alpha females in the case of bonobos, and some kind of ever-changing pecking order. And generally, that’s about it. After all, we don’t have to live with these beasties.

And that’s not how we see humans – we see them as individuals. Family, friends, enemies, politicians, philosophers, comedians, teachers, lovers, heroes and villains. And that’s why, I think, that so many people take the individual view when the idea of a female-dominated, bonoboesque society is mooted. Margaret Thatcher was an inhuman monster. My mother treated me like shit. I hated my female boss at Woollies. 

But on learning more about our closest living relatives, and primates generally, which I’ve done, unfortunately not directly but through observant primatologists such as Jane Goodall, Birute Galdikas, Frans de Waal and Dian Fossey, among many others, you soon learn that they too are individuals with a variety of quirks and sensibilities.  But of course these individual proclivities are contained within the broader social structure – male dominance and greater violence for chimps, female dominance and more sex and less violence for bonobos. 

I wish I could get this across to people. Is it the sex that bothers them? A while back I read a sentence on some website saying that some study of studies found that viewing pornography made people more violent. No references were given, but it occurred to me that, even if that were true, it seems not unreasonable to surmise that people who watch a lot of porn are not themselves having lots of sex other than masturbation, and not the mutual masturbation beloved of bonobos. By the same token it seemed to me that the porn performers would not be made more violent thereby – they’d be too busy recovering and looking forward to the next bonoboesque scene. Of course there is sado-masochistic porn, just as there is soft porn, female-female porn, male-male porn, and the kind of sexual amusement parlours I’ve described in a previous piece. 

And there are also feminists that are anti-porn, or there were, back in the day. What such women, if they still exist, think of female-on-female porn is a question. It seems to me that all these varieties of porn exist because there’s a market for them, just as prostitution is described as the world’s oldest profession, and still going strong. Perhaps in a matriarchy this would still be the case, but with the majority of clients being female. Or perhaps, if we were to combine human matriarchy with bonoboism, prostitution of all kinds would be rendered obsolete. After all, Frans de Waal did describe bonobo behaviour as positively pornographic at times. 

I don’t know, maybe I’m just a few hundred years before my time. But by then, surely bonobos will have gone extinct in the wild, and their behaviour in captivity will have been modified to be suitable for viewing by children. 

Sigh…

References

a world turned….

https://www.ttbook.org/interview/women-who-revolutionized-primatology

Written by stewart henderson

February 11, 2025 at 5:36 pm

bonobo issues

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Something I encountered in S J Gould’s book Life’s Grandeur, added to other little encounters in my readings and researchings, has caused a few concerns. In trying to promote bonoboism, of a kind, the last thing I’d want to do is limit humanity’s intellectual pursuits, curiosity, adaptability and general gung-ho cleverness. As if I had the power haha. So whenever I read or hear something that might suggest that bonobos aren’t as smart as chimps I get worried. 

Anyway, my reading, as usual, took me on some internet journeys, in one of which I found that the average chimp brain volume is 398 cc while that of bonobos is 348 cc. Remember of course that bonobos used to be known as pygmy chimps, and the average difference in overall size between the two species pretty well corresponds to the difference in brain size, and, as smart corvids and other birds remind us, size isn’t always an indicator of such things. 

But there are other worries. I’ve gotten the impression that chimps are very much tool-users, bonobos perhaps not so much. But now, on consulting the literature more closely, I’m finding that maybe this isn’t so, and so I’m losing the point of this post. But of course there are differences, behaviourally, and so cognitively, between the two species, which would be worth exploring, for our future’s sake. 

A scientific article, linked below, going back to 2010, and not fully available to amateurs like me, has this to say in its abstract:

Our observations illustrate that tool use in bonobos can be highly complex and no different from what has been described for chimpanzees. The only major difference in the chimpanzee and bonobo data was that bonobos of all age–sex classes used tools in a play context, a possible manifestation of their neotenous nature. We also found that female bonobos displayed a larger range of tool use behaviours than males, a pattern previously described for chimpanzees but not for other great apes. Our results are consistent with the hypothesis that the female-biased tool use evolved prior to the split between bonobos and chimpanzees.

As to their ‘neotenous’ (i.e. eternally childlike) nature, I’m wondering. Are they really any more childlike than chimps? Apparently, that’s the consensus. A more recent piece in Current Biology by Isabel Behncke, ‘Play in the Peter Pan ape’ (Peter Pan being the boy who never grows up) looks into this issue of bonobo neoteny, and play, noting that there’s a ‘small cluster of species in which adult play occurs, such as elephants, primates, social carnivores, cetaceans, parrots and corvids’. These are all highly social species, with otherwise little in the way of evolutionary connection. They do have other connections, though, apart form sociality – longevity, and neural complexity. 

Behncke, in studying bonobos in the wild, argues that bonobos are more neotenous and playful than chimps, and one of her reasons for this corresponds with my own thoughts, happily. They live in a relatively abundant calorific habitat, and ‘play is energetically expensive and dwindles in conditions of resource scarcity’. Hence all those videos featuring pets at play. Hence, also, our own playful nature – sport, art, music, salons and pub chit-chat. Even our scientific explorations can be considered a form of play, at a stretch. 

And then there’s sex, that Big Issue that humans beat themselves up about. Bonobo play is less solitary than that of chimps, and more sexual. I also would note that the development of tool use, which has, as mentioned, been more associated with females than males, in both bonobos and chimps, is surely associated with play. But much play between bonobos is genital-based. ‘Chasing’, especially around a solitary object such as a tree, and genital-grabbing is common, which of course can be potentially painful, but according to Behncke virtually never results in serious injury. This often happens between members of different troupes, and Behncke points out here a vital difference between the two tightly related primates. Chimps exhibit hostility between troupes, with ‘wars’ sometimes ending in wipeouts, as Jane Goodall and others have reported. Of the often fatal injuries sustained, mutilated genitals are high on the list. 

So, about the sex. But first, it should be noted that communal or paired play is often about trust. The ‘hanging’ game, for example, is often played between an adult and a juvenile bonobo, in which the adult lets the child dangle from her arm, from a more or less high tree branch. Like bungee jumping, without the elasticity, but with much of the thrill. Also, play (and sex) occurs with a multitude of partners, with attendant advantages:

Play-partner diversity is important when thinking about adaptability: playing 100 times with the same individual requires less variation and adjustment of behaviour than playing 10 times with 10 different individuals. Playing with individuals of different sizes, personalities and sex requires learning about contextual-dependent behaviour: with whom and when a bite is appropriate, a chase over a push, a gentle tickle rather than a stomping slap, and so on.

So, much of this research has assured me that we’re on the right track in becoming more bonoboesque humans, in spite of Trump, Putin, Musk and other throwbacks. I’m hoping that even the USA will have a female President some time in the 21st century, and if they progress even further along the bonobo line, they might scrap their worthless semi-monarchical Presidential system altogether…

Okay, maybe in the 22nd century…

Sorry, never really got round to the sex. 

References

https://www.sciencedirect.com/science/article/abs/pii/S000334721000343X#:~:text=Chimpanzees%2C%20Pan%20troglodytes%2C%20are%20the,been%20described%20as%20particularly%20poor.

Click to access S0960-9822(14)01481-X.pdf

Written by stewart henderson

January 28, 2025 at 12:17 pm

on male advantage and how it continues…

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The late Frans de Waal, in his book Different: what apes can teach us about gender, observes some interesting traits that humans consider to be associated with leadership, and which probably date back to our primate ancestors. The most obvious one is physical. We’ve all heard that being short (as I am) is a serious disadvantage for those vying for the Prime Ministership or the Presidency, to say nothing of military leadership. 

But what about Napoleon? Actually of average height for his time, as was Hitler. Mao was a little above average, and Stalin somewhat below, but of course none of these men were elected into power. The average height of US Presidents is well above the average US citizen, and much more so if you include women, from the time that women were eligible for that office (1920). 

Another physical attribute we associate with power is loudness and vocal tone. A scientific paper published in 2016 entitled ‘Sexual selection on male vocal fundamental frequency in humans and other anthropoids’, began with this interesting statement:

In many primates, including humans, the vocalizations of males and females differ dramatically, with male vocalizations and vocal anatomy often seeming to exaggerate apparent body size.

and then it continues:

Here we show across anthropoids that sexual dimorphism in fundamental frequency (F0) increased during evolutionary transitions towards polygyny, and decreased during transitions towards monogamy. Surprisingly, humans exhibit greater F0 sexual dimorphism than any other ape. We also show that low-F0 vocalizations predict perceptions of men’s dominance and attractiveness, and predict hormone profiles (low cortisol and high testosterone) related to immune function. These results suggest that low male F0 signals condition to competitors and mates, and evolved in male anthropoids in response to the intensity of mating competition.

This is quite an issue, as our vocalisations are vast and complex, and better known as speech. As de Waal puts it: 

We are a verbal species, and the voice is hugely important to us. And here I don’t mean the content of what we say, but how we say it, how loudly, and with what vocal timbre.

The adult male larynx is 60% longer than that of the female, a particular sexual dimorphism that is much greater than the general sexual dimorphism of humans. One has to wonder why this evolution has occurred, because the effect has been to reinforce male dominance. The principal argument, as alluded to above, is that it suggests male vitality to other males, and females, in the mating game – but are we more competitive than other primates in that arena? Of course, in the WEIRD world, male dominance is being increasingly challenged, but how can a few decades of social evolution compete with millions of years of the physico-genetic variety? Or, as de Waal put it: ‘How does it serve sound decision-making if decisions are prioritised by the timbre of the voice that expresses them?’ This is the dilemma – we know, sort of, that we shouldn’t fall for a deep voice – or a tall stature – as a sign of greater authority, but we fall for it nevertheless. 

I always feel inclined to eliminate men with high testosterone levels, perhaps by boiling them in their own sewerage (sorry, a macho moment), but every website tells me, in emergency tones, that low testosterone is a health hazard. So what is the antidote, the quick fix, to these male power advantages? One suggestion of course, is the bonobo way – not just safety in numbers but power in numbers, even to the point of bullying. A patrolling, policing bonobo sisterhood. And certainly women with ‘the knowledge’ are fighting back. And I too, have been campaigning on this front, for example by advocating less adversarial systems in politics, the law and industrial relations. I note that the political dramas currently occurring in South Korea have much to do with their having adopted, no doubt under ‘benign’ pressure, the fundamentally flawed US political system after the Korean war. However, even the more party-based Westminster parliamentary system could do with a shake-up, to effect a more inclusive, egalitarian approach to decision-making. 

Ah, but wait up. Hierarchies are everywhere, de Waal and others tell us. It’s alpha males mostly, and alpha females among bonobos and some other species. And there are generally hierarchies within each gender, or sex. But these are more complex hierarchies than we might think. Whether male or female, they’re not always based on physical strength. What we would call emotional intelligence or EQ plays a big part, especially in female leadership. So, as human society, especially in the WEIRD world, becomes less patriarchal, this different kind of leadership, a kind of leadership against leadership, or a co-operation-promoting, networking leadership, will hopefully emerge. Such collaborations can help in the battle against patriarchy, of course. de Waal again, referencing the American anthropologist Barbara Smuts, writes this:

[One way] for women to reduce the risk of male sexual harassment is to rely on each other. Their support network may be kin-based (if women stay in their natal communities after marriage), but it could also, like the bonobo sisterhood, consist of unrelated women.

And, of course, sympathetic men. Some of whom, like the Dutch historian and sociologist Rutger Bregman, have tackled claims about the ‘natural’ violence of men head on. In stark contrast to de Waal, Bregman has this to say:

Basically, our ancestors were allergic to inequality. Decisions were group affairs requiring long deliberation in which everybody got to have their say.

So ‘allergic to inequality’ or ‘hierarchies everywhere’? Both of these things are not like the other. And yet both authors have written admiringly of each others’ work. I think the answer lies in complexity. I’ve lived in share houses, which formed hierarchies of a sort, hierarchies that shifted as tenants came and went. Others would describe the group as essentially egalitarian, though with a certain seniority for more long-standing tenants. And obviously a nuclear family is a hierarchy, with parents of different rank depending on personality, and age-ranked siblings. Workplaces are generally hierarchical, whether formally or informally, depending on seniority and competence. Again, in the world that I’ve grown up in, these hierarchies have become less patriarchal – in fact, my mother was the principal breadwinner in our family, and the principal decision-maker.    

So is there much in the way of male advantage in today’s WEIRD world? Of course there is. How many women are in the top ten richest individuals (sorry to bring up filthy lucre)? Zero of course. How many female US Presidents? Zero of course. How many elected Canadian Prime Ministers? Zero. How many French Presidents? Zero. How many Italian Prime Ministers? Congratulations, their current PM Giorgia Meloni is the first to hold that office. How many Spanish Prime Ministers? None. And so on. Of course there has been Thatcher and Merkel, and other one-offs in progressive countries vis-a-vis gender, but there has been nothing like parity, and there won’t be for a long long time into the future. And then there’s the rest of the world, where patriarchy and misogyny run riot.

I’m getting old and tired.

References

Frans de Waal, Different: what apes can teach us about gender, 2021

https://pmc.ncbi.nlm.nih.gov/articles/PMC4855375/#:~:text=In%20many%20primates%2C%20including%20humans,to%20exaggerate%20apparent%20body%20size.

Rutger Bregman, Human kind: a hopeful history, 2020

Written by stewart henderson

January 12, 2025 at 9:43 pm