The Platypus used to be considered a myth like Bigfoot and the Yeti.
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The elephant brain weighs about 6,000g.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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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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An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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