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Dolphin cardiac auscultation positioning. (A) A trained Navy dolphin assumes a voluntary right lateral present in the water and veterinarians auscultate the cardiac window while holding the pectoral flipper. (B) A free-ranging BB dolphin is auscultated while experienced handlers gently restrain the animal in water with the blowhole clear. Veterinarians listen by reaching under, between the pectoral flippers, to access the cardiac window.
