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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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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Camels and llamas can cross breed. The offspring is called a ‘Cama’.
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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 cat brain weighs about 30g.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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