Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
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There's a lizard known as the 'Jesus Lizard' that can run across water.
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Parrot parents "name" their children with a signature call.
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During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
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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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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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