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Caption
Photograph of a specimen of the common European starfish Asterias rubens with a regenerating arm. Starfish shed arms (autotomy) when attacked by predators and then regenerate a new arm to replace the lost arm. Research by scientists at Queen Mary University of London have uncovered the mechanisms of autotomy by identifying a neurohormone that promotes arm loss in starfish.
Credit
Professor Maurice Elphick / Queen Mary University of London
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