3.3-Million-Year-Old Hominid Child Foot Is "Humanlike"

3.3-Million-Year-Old Hominid Child Foot Is "Humanlike"
AP Photo/Themba Hadebe

Walking was afoot long ago among toddler-aged members of a hominid species best known for Lucy's partial skeleton.

A largely complete, 3.3-million-year-old child's foot from Australopithecus afarensis shows that the appendage would have aligned the ankle and knee under the body's center of mass, a crucial design feature for upright walking, scientists report July 4 in Science Advances.

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