They were big enough to go travelling

 作者:司马撵炷     |      日期:2019-03-07 03:10:06
By Jeff Hecht LARGE size, rather than advanced tools, may have triggered the first human migration from Africa. So say anthropologists who have found the skulls of two early humans alongside primitive stone tools. The pair lived some 1.7 million years ago at Dmanisi in the Republic of Georgia. The first recognisable “humans”, Homo habilis, evolved about 2.4 million years ago, and developed sharp flaked stone tools called the Oldowan tool kit. With bodies about two-thirds the size of modern humans, and brains even smaller,