Hammerhead Shark, Cocos Island, Costa Rica

“This shark was cruising low along the reef known as Alcyone. Her left eye was glancing up toward other hammerheads when I took this shot from below.” -- Nature's Best photographer, Alan Studley.Equipment Used to Capture the Shot: Nikon D300; Tokin
(Alan Studley/Nature’s Best Photography)

“This shark was cruising low along the reef known as Alcyone. Her left eye was glancing up toward other hammerheads when I took this shot from below.” -- Nature's Best photographer, Alan Studley.

See more beautiful ocean photos in our slideshow of winners from the 2010 Nature's Best Ocean Views photo contest.