How did our ancestors transition from a nonsymbolic, nonlinguistic cognitive state to a symbolic and linguistic one?


Born in England and raised in East Africa, Ian Tattersall is a paleoanthropologist and an emeritus curator with the American Museum of Natural History in New York City. Currently, his major research focus is on how modern humans acquired a unique style of thinking, and how we managed to dominate the planet while other human species went extinct.  
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