Can sharks be kept at bay without harm? A scientist is testing an electromagnetic barrier off Cape Cod to find out.

Bait — especially bloody fish parts called chum — can serve as a real shark magnet. Sometimes sharks are chasing bait or fish, says University of North Carolina shark biologist Frank J.

There are three basic types of shark deterrents: electrical, magnetic, and chemical. Of the three, an electrical deterrent is ...

The endangered creature is a target for fishing off the coast of the Bahamas—and a magnet for ecotourists ... Since the 1980s, Caribbean reef shark populations have dropped 52 percent.