The successful sexual interactions observed involved a male deer, with the majority involving an adult male: In total, the team recorded 12 successful interactions between monkeys, involving six adolescent females, between November and January — with a total of 67 mounts by the monkeys. But this does not mean that bonobos are incapable of aggression. By Henry Nicholls 17 March Reputation: The latter is a well known practice, and the only available comparison, as during the study adolescent females were not seen performing sexual mounts on adult male monkeys.
Finally, males also engage in sex-like behaviours, roughly analogous to the genital rubbing of females. However, a cursory inspection of the distribution of chimpanzees and bonobos across Africa strongly suggests a role for the Congo River. In total, the team recorded 12 successful interactions between monkeys, involving six adolescent females, between November and January — with a total of 67 mounts by the monkeys. Unexpectedly, pelvic thrusting was more common when the partner was a deer. With only adolescent female monkeys spotted mounting deer, the team compared the interactions to sexual interactions between adolescent female monkeys. If you liked this story, sign up for the weekly bbc. Kano also observed lots of unusual sexual behaviour. In addition, 13 successful interactions of an apparently sexual nature were recorded between monkeys and deer between early November and January , involving five adolescent females and a total of mounts. View image of Bonobos are sometimes called "hippie apes" Credit: In , he and his colleagues, writing in Evolutionary Anthropology , proposed that when the Congo River formed around 34 million years ago, all the apes were on the right bank. With no monkey-deer sexual interactions previously having been noticed at Minoo, the team say that the behaviour could be the start of a new custom, adding that adolescent females would watch others on the backs of the deer and try to take their place. This is very different from the relatively limited sexuality of female chimps, but could have arisen as a result of just a few genetic changes in that founding population, says Furuichi. View image of This bonobo looks like it is wearing a bad wig Credit: Pinterest Video footage captured by the researchers. This is all true, but the public fascination with these behaviours has given rise to a view of bonobos that is a little extreme, says Zanna Clay of the University of Birmingham in the UK, who has spent years studying wild bonobos. This contrasts with chimpanzees, where females tend to spend a lot of time marginalised at the edge of the community. This typically lasted for less than 20 seconds, and occasionally for over a minute. With many females sexually active at once, there would have been less and less competition between males, until eventually the females took control. For instance, when a group arrives at a new feeding tree, there is tension over who is going to make the richest pickings. By Henry Nicholls 17 March Reputation: The frequency of copulation in bonobos is not as high as most people assume, she says. When the Congo River formed around 34 million years ago, all the apes were on the right bank In , researchers found that mothers helped their sons to get closer to and more matings with estrus females. Bonobos are roughly the same size as chimps, can be aggressive and use sex in very specific contexts. These super-dominant females can be pretty violent towards males, says Clay. If you were to sit on a raft and drift downriver towards the Atlantic Ocean, you would find chimpanzees occupying the right bank and bonobos on the left. View image of Bonobos seem to be less violent than chimps Credit:
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