Actually it is a good sign when fish that would normally school do not do so. It means that they are feeling secure.
Schooling behavior is a defensive action. If a predator is present, a school of fish can definitely confuse it when compared to single fish. A single fish can be sought out and consumed but a group that swims together often can cause so much confusion to a predator that all of the fish in the school escape predation. That is why it developed over the millenia. Fish that schooled well survived and the others did not.
Schooling behavior is a defensive action. If a predator is present, a school of fish can definitely confuse it when compared to single fish. A single fish can be sought out and consumed but a group that swims together often can cause so much confusion to a predator that all of the fish in the school escape predation. That is why it developed over the millenia. Fish that schooled well survived and the others did not.
