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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Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
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A group of kittens is called a "kindle".
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Dogs have been man's pet for over 14,000 years.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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