After spending weeks skirting along the eastern seaboard, Mary Lee, the great white shark that was tagged by OCEARCH, a non-profit organization ocean research group is starting to swim out to deeper waters.
In the meantime, Genie, another great white shark that was tagged around the same time as Mary Lee, has not surfaced in more than 4 weeks.
Jan. 19 was the last time Genie surfaced and pinged.
She was located off the coast of Hilton Head Island, S.C.
Each time a shark that the research group has tagged breaks the surface, a Global Positioning System attached to the dorsal fin marks the location. That information is then made visible and mapped on the group's website for the public to track.