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|White-spotted puffer, Arothron hispidus|
The Pufferfish is a family of fish, with about 100 species. They are also known as the blowfish, fugu, swellfish, and globefish. They are called the pufferfish because when they are threatened, they puffs up to about twice their normal size by gulping water. In this engorged state, the pufferfish can swim at only about half their normal speed.
Most pufferfish are found in sub-tropical and tropical marine waters (including coral reefs) in the Atlantic, Pacific, and Indian Oceans. Some puffers live in brackish and fresh water. The scientific name refers to the four large teeth, fused into an upper and lower plate, which are used for crushing the shells of crustaceans and mollusks, their natural prey.