alienation news

Gene mutation behind mysteries of human evolution

By 100,000 years ago, Homo sapiens had evolved on the continent of Africa. For 50,000 years, they were confined there, and they behaved just like H. neanderthalensis then inhabiting parts of Europe and H. erectus living in Asia. Then their behavior changed dramatically - and anthropologists aren't entirely certain what happened.
Richard Klein, a professor of anthropological sciences at Stanford, has an explanation, albeit a controversial one: ''I think there was a biological change - a genetic mutation of some kind that promoted the fully modern ability to create and innovate.'' Klein told the annual meeting of the American Association for the Advancement of Science in Denver.