The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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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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Jellyfish as a species are actually older than dinosaurs and sharks.
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Ants have tiny magnetic compasses in their antennae which help them navigate.
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Mosquitoes don't just bite you, they also pee on you.
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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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