The oldest creature ever found was Ming the clam at an admirable 507 years old.
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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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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Cows can sleep standing up, but they can only dream lying down.
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Dogs sometimes fake being sick to get attention.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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Mosquitoes don't just bite you, they also pee on you.
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