Attending a talk on primates while worrying about the WI governor's attack on state employee unions
Friday evening I was torn between watching a Cinematheque showing of a documentary on the Nuremberg trials and attending a talk by a primate researcher. The film was a restoration of a US government documentary made in the 1940s that wasn't allowed to be shown in the US. I figured that I could see it in the future on DVD, so I chose the talk by Jill Pruetz, an anthropologist at Iowa State.[For more info see this article:http://ngm.nationalgeographic.com/ngm/2008-04/chimps-with-spears/roach-text.html]

The chimpanzees she studies in the savanna-woodlands of Senegal face an environment very different from the chimps in more heavily forested central Africa, such as in the Congo. She got in the news for discovering that the Senegal chimps sometimes sharpen with their teeth the ends of branches to use as spears to kill small monkeys. The chimps poke the spears into the holes of tree trunks where monkeys hide. Before this it was thought that only humans make such a tool.

For my intro soc classes, I sometimes show a Nova documentary on the first day called "The Last Great Ape," which is on bonobos but includes an interesting comparison to chimps. The main point is that bonobos are more empathetic and much less violent than chimps. Some of the proposed causes are genetics, the male dominance in chimp culture versus female dominance of bonobos, the use of sex among bonobos as a calming mechanism, and the competition over resources that chimps face with gorillas north of the Congo River. In the past comparisons of humans with primates would mainly be with chimps, but maybe we can better understand ourselves by also learning more about bonobos.