Bats sleep 18-20 hours per day.
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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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Gorillas can catch human colds and other illnesses.
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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.
10
A group of pugs is called a grumble.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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