BBC Wildlife holds an annual wildlife photography competition to find the Shell Wildlife Photographer of the Year as well as other award-worthy photography (other competition categories can be viewed here).
The photographer of the year for 2006 is Goran Ehlme who won with a shot of a walrus feeding on clams. Goran almost deleted the award-winning shot from his camera until he noticed a walrus's head poking through a cloud of sediment. Link.