Saturday, April 3, 2010
The environment that fostered the rise of Homo Sapiens
On page 209, Coyne discusses the possible selective advantages of walking upright on two feet rather than knuckle-walking. In addition, on page 211 he also discusses the genetic differences inherent between chimp and human, such as enzymes used to break down starch. Taking into consideration these and other imformation given in this chapter, describe the possible environment and niche that could have fostered the growth of such traits (bipedalism, larger brain size etc) among the ancestors of humans. Include climate, mode of nutrition, predation (consider why more cooperative social interaction may have arisen rather than the individualistic tendencies of other apes), and geography.