What specialized, hair-like spines cover the Yeti Crab's chelipeds and legs?
Answer
setae
The distinctive, hairy appearance of the Yeti Crab, which inspired its nickname, comes from specialized structures covering its claws (chelipeds) and legs. These structures are not true fur but are scientifically identified as setae. These setae are long, silky, and often exhibit rhythmic waving motions in the water currents near hydrothermal vents. This unique morphology is crucial not only for its appearance but also functionally, as these hair-like spines are believed to serve as sensory organs, potentially detecting chemical changes and physical presence in the absolute darkness of its environment.
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