Comment

Jan 29, 2013
7/10 Lots of interesting examples of animal behavior. Main thesis: is there any human quality that is uniquely human? : NO. Every quality that is deemed as purely human is identified in animals, especially primates. Very interesting ideas on xenophobia, how there is an optimum group size for evolution. Any larger and (beneficial) changes are quickly diluted. Any smaller and cross-breeding and group-vulnerability becomes an issue.