human ancestors

New Species Of Human Ancestor Discovered In South AfricaPaleoanthropologist Lee Berger says fossilized remains suggest a new human ancestor that lived over 2.5 million years ago.
Study: Humans Started Throwing With Accuracy Nearly 2 Million Years AgoIt's a big year for throwing. The greatest closer in baseball history, Mariano Rivera of the Yankees, is retiring. Aroldis Chapman, the overpowering Cincinnati Reds reliever, continues to fire fastballs beyond 100 mph.