Who or what snuffed out the mammoths and other megafauna 13,000 years ago ... (See a list of all 35 vanished genera of North American Ice Age mammals.) But some skeptics, Grayson among them ...
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Native American ancestors’ diet was mammoth-heavy. Does this explain megafauna extinction?For decades, scientists blamed the disappearance of megafauna on a changing climate. The last ice age ended abruptly, causing rapid warming and ecological upheaval. Yet, North America’s ...
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