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More than 35 per­cent of dol­phins stud­ied in Florida’s Sara­sota Bay had scars from run-ins with sharks, ac­cord­ing to a re­cent study by the Sara­sota Dol­phin Re­search Pro­gram. Re­searchers have cap­tured, re­leased and mon­i­tored dol­phins since the 1970s, find­ing many with at least one scar. Since they were only able to study sur­vivors, sci­en­tists believe the per­cent­age of dol­phins that come into vi­o­lent con­tact with sharks is higher. Be­cause these bat­tles are quick and sight­ings are rare, wound anal­y­sis has proved use­ful for learn­ing more about these an­i­mals.

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