Contender, a 1,653-pound great white shark, tracked by OCEARCH, pinged again off the Florida coast on Valentine's Day, Feb. 14.

"Shark Tank" investors such as Kevin O'Leary may seem intimidating, but they too like to have fun sometimes and are always ...

Rangiroa is a laid-back island paradise full of underwater wonders, including abundant sharks. It's the largest coral atoll ...

Tracking salmon sharks with custom-built sensors is helping researchers study ocean temperatures, salinity shifts, and ...