A dork is a whale's penis.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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The largest earthworm on record was found in South Africa and measured 22 feet.
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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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