What Fueled Humans' Big Brains? Controversial Paper Proposes New Hypothesis - LiveScience

Paleolithic life was demanding, requiring potent foodstuffs to power primitive humans and ensure their survival. But why did cavemen need such big brains? The answer may have something to do with the loss of large prey animals and humanity's knack for improvisation. Hear out Stephanie Pappas as she digs into Miki Ben-Dor and Ran Barkai's maverick proposal, and why humans lost some of that gray matter after they settled down as farmers. Once upon a time Greenland was green. It's not some futuristic apocalyptic nightmare, but a fact drawing upon scientists examining ice cores from the frozen island. Learn how How a Secret Cold War Project Led To Signs Of Ancient Life in an inhospitable place. As Gemma Tarlach points out, the examination of Earth''s deep past can say a lot about what humanity can anticipate for our future if we don't start adopting alternative energy sources. (CS)

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from THE ANOMALIST https://bit.ly/2NAWZsN