The tentacles of a queen scallop provide an early warning by detecting chemicals associated with approaching predators.

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References

“The eyes are not the [queen scallop’s] only source of warning — the tentacles around the mantle edge are extremely sensitive to certain chemicals, and can probably detect the approach of a starfish long before its shadow falls, certainly in time for the scallop to close its valves or leap away.” (Foy and Oxford Scientific Films 1982:118)

Book
The grand design: Form and colour in animalsBLA Publishing Limited for J.M.Dent & Sons Ltd, Aldine House, LondonNovember 21, 1983
Sally Foy

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Living System/s

Organism
Queen ScallopAequipecten opercularisSpecies

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