There's a rare breed of pig that looks like a sheep.
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When cats are happy, they may squeeze their eyes shut.
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There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
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If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
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During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
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Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
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