piranha - The piranhas or pira?as are a group of carnivorous freshwater fish living in South American rivers. In Venezuelan rivers they are called caribes. 食人鱼历来以凶险著称,但最近的一期科学研究显示,其实食人鱼也是本性比较懦弱胆小,他们大批聚集在一起,主要是为了自我保护。
A piranha or piraña (/pᵻˈrɑːnjə/, /pᵻˈrænjə/, or /pᵻˈrɑːnə/; Portuguese:[piˈɾɐ̃ɲɐ], Spanish:[piˈɾaɲa]) is a member of family Characidae in order Characiformes, an omnivorous freshwater fish that inhabits South American rivers. In Venezuela, they are called caribes. They are known for their sharp teeth and powerful jaws.