Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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A dairy cow can produce more milk when listening to music.
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The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
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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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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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