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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By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
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The largest earthworm on record was found in South Africa and measured 22 feet.
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Camels and llamas can cross breed. The offspring is called a ‘Cama’.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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Sloths take two weeks to digest their food.
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