Few fish are cuter than a fully expanded, portly pufferfish — but don't be fooled. The pufferfish is the second most poisonous vertebrate on the planet. Fishermen recommend the use of thick gloves to avoid poisoning and the risk of getting bitten when removing the hook. The poison of a pufferfish, which has no antidote, kills by paralyzing the diaphragm, causing suffocation.
Puffer fish is an easily recognized type of fish due to ability to transform and enlarge its body in a split of a second. There are more than 120 species of puffer fish which live mostly in the warm waters of the Indian, Pacific and Atlantic Oceans, with only 30 species that are living in the freshwater. Some species move from marine to brackish or fresh water during the breeding season. Although number of puffer fish is stable in the wild, they are vulnerable due to overfishing, pollution of the ocean and loss of natural habitats.