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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When dragonflies mate, their tails form a love heart.
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Only 3% of bird species have penises.
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Bats sleep 18-20 hours per day.
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Whales and dolphins can't taste anything other than salt.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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