When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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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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The reindeer is the only mammal that can see UV light.
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The Platypus used to be considered a myth like Bigfoot and the Yeti.
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The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
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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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