Chicago Tonight

3.3 Million-Year-Old Fossil Reveals Evolution of Human Spine

Clip: 06/14/2017 | 11m 3s Video has closed captioning.

Thanks to years of painstaking work by University of Chicago researcher Zeray Alemseged, scientists know more about the origins of the human spine.

Aired: 06/14/17

Rating: NR

Problems Playing Video? | Closed Captioning

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