Page Updated: Tuesday, April 30, 2024 12:23 AM ET
15 extinct giants that once roamed North America - By - Laura Geggel - last updated - 29 April 24 - Until the end of the last ice age, American cheetahs, enormous armadillolike creatures and giant sloths called North America home. But it's long puzzled scientists why these animals went extinct about 10,000 years ago.
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