(Pic: Pixabay)
Tiger fish are famous for their razor-sharp teeth that can inflict serious injuries to unsuspecting swimmers. (Pic: Pxfuel)
They are dangerous fish and wounds produced by them are intensely painful and sometimes fatal. (Pic: animalaroundtheworld)
They are noted for their venomous fin spines, which are capable of producing painful, though rarely fatal, puncture wounds. (Pic: Pixabay)
Its skin is covered in spines and spikes, which are hazardous and it carries a deadly toxin called tetrodotoxin. (Pic: Pixabay)
Black piranhas and red-bellied piranhas are most aggressive toward humans. They are attracted to blood. (Pic: Pixabay)
Their jaws are equipped with sharp teeth which enable them to inflict serious wounds on their enemies, including humans. (Pic: Pixabay)
It is one of the most powerful and potentially dangerous predatory sharks in the world. (Pic: newscientist.com)
Though rare, people have been known to die after being shocked by an electric eel. (Pic: Pixabay)
It sometimes also attacks humans and has been known to enter the urethras of bathers and swimming animals. (Pic: .jungledragon.com)
The Atlantic manta ray was once thought to be aggressive to humans as sailors created myths about them.