剧情简介：When, why, and how early humans began to eat meat are three of the most fundamental unresolved questions in the study of human origins. Before 2.5 million years ago the presence and importance of meat in the hominid diet is unknown. After stone tools appear in the fossil record it seems clear that meat was eaten in increasing quantities, but whether it was obtained through hunt...(展开全部)
作者：Donna Hart
出版社：Westview Press
ISBN：9780813344034
