There are several skeletons and stuffed skins and you need to put them in the most appropriate cabinet. On the exam you'll be given diagnostic characteristics that will allow you to identify the appropriate cabinet. You're invited to give a lecture on the evolution of primate sociality. In you presentation, you'll need to list what environmental factors encourage living in groups and what factors limit group size. List at least 2 costs and 2 benefits to defending a territory and discuss what conditions would make it worthwhile to defend a territory.
Most animals avoid mating with their close kin.
Using your knowledge of genetics, explain why natural selection may favor those animals that avoid incest. When Fifi, the chimpanzee, was young, she allowed her younger brother, Flint, to copulate with her. Once she reached adolescence, she rejected him and her other brothers, Faben and Figan, as mates. You are a member of a small, isolated village on the edge of a stormy lake. Your brothers normally leave the village and marry elsewhere, but your sisters normally remain at home for their whole lives.