It certainly did in 1976, when paleoanthropologist Andrew Hill and a colleague were tossing elephant dung at each other in Laetoli, a hominid archeological site in Tanzania. As Hill dived out of ...

The most primitive hominid yet found, this species has more chimpanzee-like features than any other human ancestor. Ardipithecus ramidus may have walked upright. Other fossils discovered with A.

Caption The soft tissue for these approximations of hominid faces was predicted using equations developed by the authors. No facial features are present in the ancient hominid (C), as the authors ...