Big Picture Science Radio Show: Going All to Species (ENCORE)

The fossilized bones of Homo naledi are may hold a special place in our ancestry: a link between us and our ape-like ancestors. Some anthropologists hail the discovery as that of a new hominid species, but not all their colleagues agree. Also, the scientist who retrieved the fossils describes her perilous crawl through a cave with only ten inches of elbow room.

Listen here: http://buff.ly/2lFEcsM
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