Woolly Mammoths

Edición de la obra Woolly mammoths

Mammoths roamed Earth for more than two million years. They lived in Europe, Asia, and North America. Then ten thousand years ago, the mammoths vanished. What caused them to die out? Scientists are still trying to find out. In Woolly Mammoths, learn about how mammoths adapted to a changing planet and the possible reasons about how they became extinct.

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