Here's our preview of Discovery's Shark Week Night #3: Great White North Invasion, How to Survive a Shark Attack & Black Mako of the Abyss.

The largest tagged great white shark in the North Atlantic Ocean has been spotted 50 miles off Nantucket.

Female and male great white sharks compete in a series of challenges to determine the inferior sex in this "Shark Week" special.

The largest great white shark tagged by a marine research group in the Atlantic Ocean resurfaced off the coast of Massachusetts this week.

The town of Harpswell, Maine raised shark notification flags at Cedar Beach after two documented sightings of great white sharks were reported east of Bailey Island.