A new analysis of the hand of the 4.4-million-year-old partial skeleton of Ardipithecus ramidus indicates that the human ancestor may have climbed and swung through trees like chimpanzees do. As a ...

Ardipithecus ramidus may have walked upright. Other fossils discovered with A. ramidus suggest that the species lived in the forest. Exhibiting some chimp-like characteristics, A. anamensis' jaws ...