Fugu, or pufferfish, is a type of fish known for its unique ability to inflate its body when threatened. This fish is found in warm waters, particularly in the Pacific Ocean and Japan. Fugu is famous for its culinary use in Japanese cuisine, where it is prepared as a delicacy. However, it contains a potent toxin called tetrodotoxin, which can be deadly if not prepared correctly. Due to the risks associated with consuming fugu, chefs must undergo rigorous training and certification to serve it safely. The preparation involves removing toxic parts while ensuring the fish remains edible. Despite the dangers, fugu is enjoyed by many for its delicate flavor and unique texture.