Dramatic confirmation of hominin bipedalism by 3.6 million years ago comes from Laetoli in Tanzania, where Mary Leakey discovered

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The footprints discovered at Laetoli by Mary Leakey in 1978 are significant because they provide clear evidence of bipedalism in hominins from 3.6 million years ago. These footprints, preserved in volcanic ash, demonstrate that the individuals were walking upright on two legs, a key characteristic of hominins.

Dramatic Confirmation of Hominin Bipedalism by 3