Yes they do.. (:
they travel in schools and bite hard
Water (h20) ------------ Fish travel in schools.
schools
Fish travel in schools, whales travel in pods or gams.
Piranhas live in schools.
Fish
Fish.
Their called schools of fish. Yes
No fish can "get along" with a piranha. Piranhas are very vicious as you know, and are NOT friendly...at all.
Because they travel in schools.
Well, piranhas eat in schools. Like other little fish. They also can eat a cow in a short amount of time.
There is no standard collective noun specifically for piranhas. The general collective nouns for fish can be used, 'a school of piranhas' or 'a shoal of piranhas'.