Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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There are approximately three chickens for every human on Earth.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
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The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
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When a male honey bee climaxes during sex, his testicles explode and then he dies.
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