16-foot, 3,500-pound shark heading toward Florida

The shark named Mary Lee measures at 16 feet and weighs 3,500 pounds.

Tracking devices allows scientists or anyone else to follow shark’s movements in the water.

Professor Dr. Jim Gelsleichter runs the University of North Florida’s shark biology program.

He was part of the team that joined Ocearch biologists tagging a great white named Katharine in August 2013 near Cape Cod.

Gelsleichter said there's no cause for alarm.

“There's never been a reported attack of a bather in Florida or by a diver by a white shark,” he said. 

The tracking device also shows the 2,300-pound great white Katharine was so close to shore. She pinged just a few hundred yards off the beach at the Ponte Vedra Inn and Club at 12:46 p.m. Saturday.

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