Ocearch to launch largest U.S. shark expedition in history

CHATHAM, Mass. (WHDH) — The non-profit research group Ocearch set to launch the largest shark expedition in U.S. history.

A crew was scheduled to set out Tuesday to begin tracking sharks off the coast of Chatham.

The expedition was scheduled to run until the end of August.

Last summer, the group tagged two sharks, named Genie and Mary Lee, off of Cape Cod.