Well, if you look in textbooks today that deal with human evolution, you very often find people speculating about how early humans may have behaved, based on the behavior of chimpanzees.
噢，如果你看一下现在讲人类进化的书 就会常常发现，人们是基于黑猩猩的行为表现 来思考早期人类可能的行为方式