和訳をお願いします Not so, says Harpending. Those same improvements, he says, have actually sped evolution up. He estimates that seven percent of all human genes are still undergoing rapid evolution in response to environmental conditions. This means that people in different regions of the world are evolving away from each other. We are becoming less and less alike. For example, while malaria-resistant genes are evolving in Africa, genes that suppress body odor and make for coarser hair have emerged in Asia. In Europe, where dairy farming is common, evolution has given adults the ability to digest milk; this ability has yet to appear in China and Africa.