How does the Yeti Crab actively harvest the bacterial mats growing on its own appendages?
Answer
Using specialized mouthparts to methodically brush or scrape the mats
The mechanism for consumption is highly specialized and involves active management of its microbial garden. The Yeti Crab possesses specific structures located near its mouthparts which are designed for this exact purpose. It systematically brushes or scrapes the thick bacterial mats directly off the dense setae covering its arms and claws. This method ensures a continuous intake of fresh, actively growing biomass, contrasting sharply with the general claw-and-catch feeding strategies observed in other crustaceans. This dedicated scraping behavior is essential for maintaining a steady energy conversion rate.
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Yeti crab eating bacteria from its claws - YouTube
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