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Big Brains Require An Explanation, Part I: Why Did Humans Become Smarter, Not Just More Numerous?

(This is a multi-part series. For the index, click here.)

How did we get from this:

Australopithecus afarensis (reconstruction)

To both this…

Hadzabe hunting Marabou storks

And this?

. . . ]

Continue reading “Big Brains Require An Explanation, Part I: Why Did Humans Become Smarter, Not Just More Numerous?”