Sharks have been on the planet longer than trees.
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The most expensive cow in the world was sold in 2009 for $1.2 million.
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Early American humans hunted car-size armadillos and used their shells for houses.
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Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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A group of pugs is called a grumble.
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