Shoaling and schooling

In biological terms every group of fish which remains together for practical reasons is shoaling, and if the group swims in a coordinated manner in the same direction, they're schooling. Evolutionary biologists suggest that some fish have evolved to swim in schools in order to protect themselves from predators, to strengthen their foraging and to swim faster. Different to shoaling, where fish only swim together loosely manner, schooling includes coordinated postures and a movement which is synchronised.
Author: Brenda Moita
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