Ardi walked the walk 4.4 million years ago

The pelvis of Ardipithecus shows the hominid could both walk upright and climb trees


UPRIGHT CLIMBER  An artist’s reconstruction shows 4.4-million-year-old Ardipithecus ramidus in action as both a climber and a two-legged walker. This early hominid combined humanlike, nearly straight-legged walking with powerful, apelike climbing abilities, a new study finds.

Mauricio Anton/Science Source

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