The ancestor of all domestic cats is the African Wild Cat which still exists today.
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Early American humans hunted car-size armadillos and used their shells for houses.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Sharks have been on the planet longer than trees.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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The elephant brain weighs about 6,000g.
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