A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
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Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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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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When cats are happy, they may squeeze their eyes shut.
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