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Evidence for Human Evolution

Dr. Rick Potts uses fossils and artifacts to show how brains got bigger and tools became specialized as humans evolved. Fossil skulls reveal changes in the physical form of humans, from small brains and long, sloping faces 2.5 million years ago, to large brains and small faces today. Similarly, changes in tools over time reveal how early humans changed their behavior.

Video from Smithsonian's Human Origins Program.

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