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BOSTON — Massachusetts officials are using high-tech tags to track the movements of two great white sharks near Cape Cod — the first time the fearsome fish have ever been tagged in the Atlantic Ocean.
The electronic tag uses satellite technology to record the travels of the sharks, allowing scientists to better understand their migratory patterns.
The sharks were spotted Saturday by scientists investigating sightings off Monomoy Island in Chatham. Officials say a harpooner tagged them with help from a state shark expert.



