Final answer:
Schooling fish do not make sounds that predators can detect. They rely on visual cues and coordinated movements to protect themselves from predators.
Step-by-step explanation:
Schooling fish do not make sounds that predators can detect. Instead, they rely on visual cues and coordinated movements to protect themselves from predators. Fish in schools swim in a coordinated pattern, which helps to confuse predators and make it difficult for them to target an individual fish. Additionally, some schooling fish have evolved protective coloration or markings that make them blend in with their surroundings, further reducing the chances of being detected by predators.