A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
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Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
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The male seahorse carries babies and 'gives birth' to them instead of the female.
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Cats sleep for 70% of their lives.
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