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Articles on Quaternary extinction event

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The now-extinct giant beaver once lived from Florida to Alaska. It weighed as much as 100 kilograms, roughly the same as a small black bear. Illustrated by Luke Dickey/Western University

Why giant human-sized beavers died out 10,000 years ago

Scientists studied the fossilized bones of giant beavers to understand what they ate and whether the species could keep up with environmental change.

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