Skeleton of Upright Human Ancestor Discovered in Ethiopia

摘要

Scientists working in the remote badlands of Ethiopia have found the oldest known skeleton of an upright walking hominid, roughly dated to nearly 4 million years ago. The remarkably preserved partial skeleton includes many bones of the pelvis, leg, back, and arms, as a team led by paleoanthropolo- gists Yohannes Haile-Selassie and Bruce Latimer of the Cleveland Museum of Natural History in Ohio announced last week at a press conference in Addis Ababa, Ethiopia.