| Description |
Explores the strange world of sound beneath the sea. Discusses non-animal sounds and those produced by marine animals. Illustrates how fish and other marine organisms make sounds through air sacs, teeth, external body parts, and air flaps. Explains how underwater sounds serve as attraction devices, reaction devices to environmental conditions, and signals, and as incidental noise which serves no purpose. Uses underwater phototgraphy and recordings to demonstrate purposes of various sounds made by the snapping shrimp, grunt fish, grouper, queen trigger fish, porcupine fish, spiney lobsters, jacks, propoises, and the unidentified "echo fish".
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