Humans aren't the only animals with complex culture, but researchers point to one feature that makes ours unique
Of the 8.7 million species on Earth, why are human beings the only one that paints self-portraits, walks on the moon and ...
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Genetic study reveals hidden chapter in human evolution
Modern humans descended from not one, but at least two ancestral populations that drifted apart and later reconnected, long before modern humans spread across the globe.