School of Fish

Some fish swim alone; others stay in groups known as “schools” or “shoals.”  A school of fish swims in formation, moving and turning with great precision.  The old saying that there is safety in numbers can be observed here.  Not only are many eyes better than one in watching for enemies, but when threatened, a school of fish scatters in all directions.

Since the predator must choose which fish, to pursue, usually only one fish is likely to be caught—a small price to pay for the survival of the group.  Schooling also insures reproduction and eases the task of food gathering. – Dick Rogers