GRAND ISLE, LA (WVUE) - Sharks head north after migrating south for the winter.
Incredible aerial video shows hundreds of sharks returning to Louisiana waters.
The sharks are basically following other fish that they eat as the fish move into warmer waters, according to shark expert Greg Marshall.
The video was shot from an oil platform about 30 miles off the coast of Grand Isle, Louisiana last week. Hundreds of sharks can be seen from the oil platform, which sits about 70 feet above the Gulf.
Mobile users can watch the video here: http://bit.ly/1ECgI9O