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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A giraffe's kick is so powerful that it can decapitate a lion.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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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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