The Hoff crab may have originated in the Pacific Ocean before migrating to the South and Indian oceans, scientists from Oxford University have found. The hairy-chested deep-sea dwellers likely shared a common ancestor with the Yeti crab some 40 million years ago, the researchers say. The crab survives in low-oxygen environments near deep sea vents by "farming" bacteria in its chest hair, although the scientists noted that global warming is disrupting the crabs' environments.

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