Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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Sloths take two weeks to digest their food.
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A dork is a whale's penis.
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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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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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