What Made Early Humans Smart

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Bipedalism — walking on two legs rather than four — may have led humans towards getting bigger brains, but not in the way most people would think. As researchers discover that bipedalism was common in our early ape ancestors, they’re speculating that bipedalism was not the sole reason for bigger hominid brains. Instead, it’s hypothesized that bipedalism allowed us to expand our home range (and therefore, our foraging grounds), which in turn allows us source more energy that could be used to sustain larger brains. Read full article here

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