All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
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There is a “Fruit Salad Tree” which can grow up to 6 different types of fruit.
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