Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
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When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
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Penguins have a gland above their eye that turns saltwater into freshwater.
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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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