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Greenland sharks are the longest living vertebrates on earth, with one individual thought to be over 400 years old

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Greenland sharks are the longest living vertebrates on earth, with one individual thought to be over 400 years old

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Polar bears have jet black skin under their white fur coats.

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Polar bears have jet black skin under their white fur coats.

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An ostrich legs are so powerful that their kicks can kill a lion (or even a human)

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An ostrich legs are so powerful that their kicks can kill a lion (or even a human)

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 A Blue Whales tongue can weigh as much as a car, or a small adult elephant.

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 A Blue Whales tongue can weigh as much as a car, or a small adult elephant.

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Hummingbirds are the only known birds that can also fly backwards.

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Hummingbirds are the only known birds that can also fly backwards.

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 Otters “hold hands” while sleeping, so they don’t float away from each other.

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 Otters “hold hands” while sleeping, so they don’t float away from each other.

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A Rhinoceros‘s horns are made of ‘keratin’, the same type of protein that makes up hair and fingernails.

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A Rhinoceros‘s horns are made of ‘keratin’, the same type of protein that makes up hair and fingernails.

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 Elephants are the only animal that can't jump.

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 Elephants are the only animal that can't jump.

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The heart of a shrimp is located in its head.

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The heart of a shrimp is located in its head.

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Greyhounds are the world’s fastest dogs with the ability to reach up to 45 mph

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Greyhounds are the world’s fastest dogs with the ability to reach up to 45 mph