A lithodid crab seen on the mussel bed at 1 mile (1.6 kilometers) beneath the surface.
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Mussels at the gas seep
This mussel community was found on flat stretches of the seafloor as well as on rocks rising 3 meters (9 feet) or more off the ocean bottom.
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This is an unidentified deep-sea fish, perhaps a relative of the genus Brotulas, resting among the mussels.
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Douglas Main loves the weird and wonderful world of science, digging into amazing Planet Earth discoveries and wacky animal findings (from marsupials mating themselves to death to zombie worms to tear-drinking butterflies) for Live Science. Follow Doug on Google+.