The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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When cats are happy, they may squeeze their eyes shut.
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The Basenji dog is the only dog that is not able to bark.
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Cats sleep for 70% of their lives.
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