Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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The seahorse is the only fish to have a neck.
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A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
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