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The foot from a 3.3 million-year-old child skeleton discovered in 2002 in Ethiopia by University of Chicago professor Zeresenay Alemseged. (Zeresenay Alemseged / University of Chicago)

New analysis of a child’s foot from an ancient fossil shows that human ancestors had adaptations that allowed them to climb trees, similar to their apelike cousins.

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University of Chicago professor Zeray Alemseged discovered the most complete spinal column of any early human relative. (Zeray Alemseged / DRP)

What the nearly complete skeleton of a 2 1/2-year-old child tells researchers about the history the human spine – and human evolution.

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