Who's the daddy?

 作者:公冶席     |      日期:2019-03-07 08:02:14
By Philip Cohen A 3.5-million-year-old skull unearthed in a gully in Kenya may force scientists to re-examine the evolution of modern humans. The skull, and additional pieces of jaws and teeth, have been classified as part of a previously unknown hominid species dubbed “flat-faced human from Kenya”, Kenyanthropus platyops. Only one other hominid species, Australopithecus afarensis, dates from a similar age— 3 to 4 million years ago. That discovery made A. afarensis—and its most famous member, the fossil Lucy—the sole candidate as ancestors of modern humans. “It seemed as if our lineage had to run through Lucy,