


SCHOOL OF FISH ©suneko
Why do fish swim in schools?
First and foremost, schools protect fish from enemies. It’s the same rule our mothers taught us, always stay in a group because there is safety in numbers. Predators find it easier to chase down and gobble up a fish swimming all alone, than trying to cut out a single fish from a huge group. The same holds true in reverse. Fish can better defend their territory in a group. Bullies will think twice about facing an angry school of fifty fish. It is also believed that swimming close together reduces friction and allows fish to conserve energy when swimming
How do they swim so close without colliding?
A complex combination of senses allows fish to achieve those smooth schooling movements we marvel at. At one time it was believed a leader in the school directed their movements. However, it is now known that each fish responds to the movements of the other fish, as well as stimuli such as pheromones. If one fish moves in a different direction all the others sense it and move accordingly. more….
Fact Source: http://freshaquarium.about.com/cs/beginnerinfo/a/schooling.htm
Other photos you may enjoy:
Great Whites feeding in a school of fish