What is this strange beast? It might look as if it comes from another planet but it's a walrus, grubbing up clams from the sea bed off Greenland. Goran Ehlme of Sweden won the title of Wildlife Photographer of the Year for this stunning portrait.
The BBC has an article about this and other award-winning photographs. An exhibition of the photographs opens tomorrow at the Natural History Museum in London. It will go on tour in May 2007.