Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
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Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
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The Platypus used to be considered a myth like Bigfoot and the Yeti.
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