Biological Anthropology: An Evolutionary Perspective

Matter Arising—New Species (1x4)

Air date: Jan 01, 2000

As different animal populations become isolated from each other, differing selection pressures cause them to adapt to their ecological niche, until a variety of forms emerge which cannot interbreed. About 65 million years ago, ancestral rodent-like populations underwent such pressures, resulting in the emergence of primates.