Mapa General Idea News Today

When you think of great white sharks you probably think of "jaws," naturally. there are two other sharks out there gaining fame. mary lee and katherine. they have thousands of followers on twitter. they are actual sharks. they are captured and tagged sharks. researchers are following their movements with a shark tracker. nbcs kerry sanders is embarking on an adventure of his own to find them. >> reporter: thomas our plan is to get inside this shark cage and then submerge. if everything works as ...