Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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The oldest recorded elephant lived for 82 years.
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A scorpion can hold its breath for up to 6 days.
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When dragonflies mate, their tails form a love heart.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Gorillas can catch human colds and other illnesses.
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By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
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