What chemical process allows the bacteria on the Yeti Crab's setae to produce organic matter in darkness?
Answer
Chemosynthesis
Since the Yeti Crab lives in perpetual darkness miles beneath the waves, its food source cannot rely on sunlight. The bacteria that coat the crab's setae employ chemosynthesis, a primary production method unique to deep-sea ecosystems near vents. This process involves harnessing the energy stored within inorganic chemicals erupting from the Earth's interior. By oxidizing these chemicals, primarily hydrogen sulfide, the microbes convert them into the necessary organic matter that forms the base of the crab's diet, effectively replacing phytoplankton in this lightless environment.
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Yeti crab eating bacteria from its claws - YouTube
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