Understanding hammerhead sharks’ food preferences could aid efforts to protect the critically endangered fish.

A hammerhead shark locates a stingray hiding beneath the ocean floor. Unnerved, the stingray makes a dash for freedom—but is it too late? Vint Cerf of Google on the Future of the Internet The ...

A hammerhead shark locates a stingray hiding beneath the ocean floor. Unnerved, the stingray makes a dash for freedom—but is it too late? National Treasure: Revealing the Stunning 2.33-Carat ...