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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Mosquitoes don't just bite you, they also pee on you.
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When you shave a guinea pig it looks like a little hippo.
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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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