Piranha

Piranhas are small to medium sized fish that live in rivers of South America. Some piranhas can be found in warm lakes and rivers of North America and in Kaptai Lake in Bangladesh. Word piranha means "fish tooth" in indigenous languages of Amazon. Exact number of species of piranha is unknown (between 30 and 60). They are not endangered.

Description
The Piranha is compressed, oval shaped, fine-scaled fish that can be anywhere from 10 to 24 in (25 to 60 cm) in length. This carnivorous predator has a blunt head and powerful jaws with sharp, wedge-shaped teeth that mesh like cutting shears and enable the fish to cut the flesh from the prey. This creature associates in large schools and is attracted by commotion and scent of blood. Once aroused, they can quickly reduce a large mammal to a skeleton. The combination of these qualities gives the Piranha an extremely high attack rate, frenzy and pack hunting abilities. This creature will contribute a vicious attack to any combination. The frenzy ability uses endurance, so keep in mind its low health and average endurance ratings when considering optimal creature combinations.