This deep-sea crab grows its own food in the hair covering its claws

Discovered in 2005 near hydrothermal vents 7,200 feet down in the South Pacific, the yeti crab is covered in dense, pale, hair-like bristles called setae, thickest on its claws. Scientists found the bristles are colonized with bacteria the crab appears to farm deliberately, waving its claws in mineral-rich vent water to feed them, then harvesting and eating the bacteria itself. Living in permanent darkness far from sunlight-based food chains, it grows its own meals on its claws.

— Michel Segonzac, Enrique Macpherson, Williams Guinot, A New Family of Crabs (Decapoda: Anomura) from Hydrothermal Vents in the Pacific-Antarctic Ridge — Zoosystema, 2005

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