Pufferfishes

Few pufferfishes species are on the list of the world's most venomous vertebrates, although pufferfishes are generally toxic. The liver and skin of certain of its species contain tetrodotoxin, which is extremely harmful to most animals when consumed. However, China, Korea, and Japan regard its flesh as a delicacy. They are typically tiny to medium in size, although some of their species may grow more than 50 cm. Although they are not present in cold water, they are quite varied there and rather uncommon in temperate regions.

Their normal diet consists mostly of insects and algae. Large ones may even contain clams, mussels, and shellfish. They will cheerfully eat a sea urchin if they come find one. Depending on their surroundings, pufferfishes can have a variety of diets. Their traditional diet consists primarily of tiny invertebrates and algae. If their habitat is resource-poor, they can subsist entirely on a vegetarian diet, but they prefer an omnivorous diet. Larger species of pufferfishes may crack open clams, mussels, and other shellfish with the help of their front teeth, which resemble beaks. Some pufferfishes species have also been observed using a variety of hunting strategies, from ambushes to open-water hunts.