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What did the first mammals look like?
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The first mammals evolved over 100 million years ago, long before the dinosaurs became extinct. These early mammals were insect eaters, rather like modern shrews or voles. They hid from the dinosaurs by burrowing or feeding at night. All modern-day mammals are descended from these tiny creatures. | | Early mammals may have resembled this pygmy white-toothed shrew |
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Previous:
Back
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Book:
1001
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Section:
Nature
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Chapter:
Land Mammals
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