A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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There's a lizard known as the 'Jesus Lizard' that can run across water.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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