50 Years Ago Anthropology

50 years ago, evidence showed that an extinct human ancestor walked upright

Excerpt from the February 16, 1974 issue of Science News

Illustration of Sahelanthropus tchadensis walking upright on the ground and climbing in trees

Leg and arm bones unearthed in Chad in 2001 hint that the extinct human ancestor Sahelanthropus tchadensis (illustrated) walked upright on the ground and in trees some 7 million years ago.

© Sabine Riffaut, Guillaume Daver, Franck Guy/Palevoprim/CNRS/Université de Poitiers

By Maria Temming

February 16, 1974 cover of Science News

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