Images: Sharks & Whales from Above

A circling great white

A great white shark (upper left) swimming around "his" dead humpback whale, Davis said, photographed about 6 years ago, about 35 miles south of Martha's Vineyard, Mass.

Whale, shark, action!

Davis has worked with Greg Skomal, a scientist with the Massachusetts' Division of Marine Fisheries, helping Skomal find great white sharks and other animals. On Aug. 27, 2010, off the coast of Chatham, Mass., Davis helped guide Skomal and other researchers to the carcass of a dead humpback whale