Our Brains Got Bigger. Now They’re Shrinking?
0:59
YouTubeCleo Abram
Our Brains Got Bigger. Now They’re Shrinking?
This chart shows human brains size over time. They got way bigger, fast. But now they’re shrinking? (No, it’s not the phones!) About 2 million years ago something changed and it altered the course of human evolution. Our brains just started RAPIDLY growing, the organ nearly doubled in size in just a few hundred thousand years. This turning ...
2.2M views4 weeks ago
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