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African history, human origins, and genetics all point to one fact—modern humans originated in Africa. Science shows that humanity spread from Africa to the rest of the world over tens of thousands of years. Older r4cial labels like “Caucasoid,” “Mongoloid,” and “N*groid” were once used in early anthropology, but today they are ...
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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 point is what allowed us to evolve into the intelligent species we are today. But now… To learn more, follow along! #evolution #human origins #science
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This chart shows human brains size over time. They got way bigger, fast. But now
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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 point is what allowed us to evolve into the intelligent species we are today. But now… To learn more, follow along! #evolution #human origins #science
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