Transcript for Mary Lee the Shark Travels 20,000 Miles Since 2012
Oh, what is that lurking in the darkness of the water? Welcome back to "Gma," everybody. Let's go the Amy in the social square with the "Speed feed." I think you know I'm going to be talking about a shark. A whopper of a shark, named Marylee. Doesn't she look like a Marylee. The 16-foot, 3500-pound great white is cruising the coast off of Long Island. Marylee named after one of the researcher's mothers was tagged back in 2012. The toothy traveler, 300 foot, teeth, by the way. Has traveled a long way by that time. Leonardo Dicaprio supporting the shark. Marylee has her own Twitter account with more than 40,000 followers. One fan noting it must be hard to tweet without opposable tums. Mary lee said, you have no idea. She'll remain that way as long as she stays -- Way off. Way off. Excuse me, we are following you, Mary lee. We are following. Coming up, George Clooney will be here live.
This transcript has been automatically generated and may not be 100% accurate.