A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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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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Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
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A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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