Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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A group of kittens is called a "kindle".
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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
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