For the past few decades the African apes called bonobos have been the favorite animal of the social liberals. The reason is that bonobos are regarded as peace-loving, love-making animals. At the Bonobo Conservation Institute they describe bonobos as "hippie" chimps who "make love, not war." Supposedly bonobos are bisexual apes who engage in incessant and indiscriminate sexual activity as an alternative to power struggles and male wars of domination. I'm surprised the Democratic Party hasn't changed its symbol from the donkey to the bonobo.

Well, maybe the liberals should put their bonobsession on hold for a while...

The July 30 issue of the New Yorker has a fascinating article on the work of the German anthropologist Gottfried Hohmann, who is considered the world's leading authority on bonobos in the wild. The key term here is "in the wild." Most of the research on bonobos to date has been done by the Dutch anthropologist Frans de Waal. Studying bonobos in cages, de Waal discovered that bonobos seem to have sex a lot: oral sex, anal sex, all kinds of sex. In de Waal's famous portrait, the bonobo emerges as a creature much more interested in sex than in work or power or anything else. In other words, de Waal's bonobos bore a startling similarity to the Dutch.

Hohmann's work shows that de Waal got it mostly wrong. Yes, bonobos act a bit weird in captivity, but what would you do if you were stuck in a cage? What else is there to do except look for unoccupied orifices? Just as people in prisons engage in all kinds of strange behavior, so too bonobos that are locked up behave in unnatural ways. "Unnatural" here means anti-Darwinian. Hohman's suspicions about de Waal's work were aroused by his recognition that the peace-loving promiscuous bonobo would not make sense under Darwin's theory of evolution. Darwin posits a struggle for existence and throughout nature this means a struggle for survival, reproduction and power. So how could bonobos be different?

Turns out they aren't. Observe bonobos in the wild for long periods of time, and they don't act much different from other kinds of apes. De Waal's famous contrast between the bonobo and the chimpanzee turns out to be largely illusory. Bonobos too have power struggles. There is patriarchy among bonobos, just as with other apes. "It was so easy for Frans to charm everyone," Hohmann says. "He had the big stories. We don't have the big stories." What Hohmann is leaving out here is the human tendency to distort evidence to suit our prejudices. Libertines and other social liberals loved Margaret Mead's now-discredited accounts of promiscuity in Samoa because they made the Samoans into libertines. Once the Samoans were shown not to conform to the liberal expectation, bonobos were fashioned into the new Samoans.

Now the liberals have to look for another mascot. Who will it be: the Andalusian ant? The New Zealand platypus? Perhaps these fellows should stick with the donkey.