A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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There's a lizard known as the 'Jesus Lizard' that can run across water.
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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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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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A 42-foot sperm whale has about 7 tons of oil in it.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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