Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Sharks, like other fish, have their reproductive organs in their chests.
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There's a rare breed of pig that looks like a sheep.
14
The penguin is the only bird who can swim, but not fly!
90
Apple seeds are poisonous!
27
We share 70% of our DNA with a slug.
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