Sounding generally refers to a mechanism of probing the environment by sending out some kind of stimulus.[1] The term derives from the ancient practice of determining the depth of water (making a sounding) by feeding out a line with a weight at the end.
In biology, organisms employ a variety of sensory modalities for sounding: touch (antennae, whiskers), vibration (spiders), electrical (fish), chemical (Phycomyces blakesleeanus), temperature (diving reflex), and perhaps light (flashlight fish).
Sounding can refer to:
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