Puffer
Puffer is mostly found in warm temperate regions. They are very poisonous, causing death sometimes.
Red Lionfish
Red Lionfish are noted for their venomous fin spines, producing a lot of pain but not fatal to health.
Great White Shark
They are responsible for attacks on swimmers, divers, surfers, kayakers and even small boats.
Moray Eel
Morey Eel's jaws are equipped with strong, sharp teeth which can inflict serious wounds. However, they do not attack until disturbed.
Tigerfish
They are considered to be dangerous due to salmon-shaped carnivores with dagger-like teeth.