lateral line

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A system of receptors, often embedded in special grooves in the skin of an animal, that is capable of detecting vibrations (and therefore movements) in the water surrounding the animal. In most fish, the lateral line runs along the sides of the body, but usually it forms a number of branches on the head. It is found in all lower aquatic vertebrates and some Amphibia.

Subjects: Zoology and Animal Sciences.

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