Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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Cats sleep for 70% of their lives.
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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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Cats recognise the voice of their owner, but never evolved to care.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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