The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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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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Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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Cats and dogs can hear ultrasound.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
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Cows can sleep standing up, but they can only dream lying down.
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