Long-lost human ancestor is greatest find in decades

Aired: 9/10/2015 | 0:09:23 | Clip
Scientists have discovered a new human-like species, deep in a cave system in South Africa. Researchers have said that the discovery could change our conception of human ancestry. For more on the discovery, Jeffrey Brown speaks to Jamie Shreeve of National Geographic Magazine and excavation team member Becca Peixotto.

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