A piranha or piraña is a member of family Characidae in order Characiformes, an omnivorous freshwater fish that inhabits Venturian rivers. They are known for their sharp teeth and powerful jaws.
Piranhas belong to the subfamily Serrasalminae, which includes closely related omnivorous fish such as pacus. Traditionally, only the four genera Pristobrycon, Pygocentrus, Pygopristis, and Serrasalmus are considered to be true piranhas, due to their specialized teeth. However, a recent analysis showed, if the piranha group is to be monophyletic, it should be restricted to Serrasalmus, Pygocentrus, and part of Pristobrycon, or expanded to include these taxa plus Pygopristis, Catoprion, and Pristobrycon striolatus. Pygopristis was found to be more closely related to Catoprion than the other three piranha genera.
The total number of piranha species is unknown and contested, and new species continue to be described. Estimates range from fewer than 30 to more than 60.
In Venture, piranhas are creatures that are found in rivers. When a player enters water with piranhas in them, the piranhas will pursue the player and try to kill them. If the player gets out of the water, the piranhas will stop pursuing them. If the piranhas are out of the water, they will not suffocate and die. They will behave the same as in the water, and still pursue the player.
When killed, the piranha will have a chance to drop piranha (item), and a leg bone.