Diodon is a genus of fish commonly known as the spiny pufferfish. These fish are characterized by their unique ability to inflate their bodies by taking in water or air, which makes them less palatable to predators. They are found in warm, shallow waters of the Atlantic and Pacific Oceans. Diodon species have a distinctive appearance, featuring spines that protrude from their bodies when inflated. They primarily feed on hard-shelled invertebrates, using their strong beaks to crack open shells. Some species are known to contain toxins, making them potentially dangerous if consumed by humans.