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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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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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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When cats are happy, they may squeeze their eyes shut.
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Tigers can see 6 times better at night than humans.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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