Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Tigers can see 6 times better at night than humans.
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Parrot parents "name" their children with a signature call.
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Dogs sometimes fake being sick to get attention.
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A group of unicorns is called a blessing.
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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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