The most luxurious human characteristic—and the one that preoccupies us the most—might be our hair. We curl it, dye it, cut it, braid it and straighten it. We style it to suit our self-image, spending ...
The human brain has an extraordinary ability to take a fundamental biological need and develop it in ways completely unknown to other species. Many species build or inhabit shelters or nests: but only ...
WASHINGTON, Aug 27 (Reuters) - Bipedal locomotion - walking upright on two legs - is a fundamental trait underpinning humankind's success. Scientists now have identified two innovations that occurred ...
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