A blurb from their web site:
"The Shell Wildlife Photographer of the Year competition is organised by the Natural History Museum and BBC Wildlife Magazine. Each year thousands of entries are received and judged by an expert panel. The winners are announced at an awards ceremony that takes place each October at the Natural History Museum, London."
"Now in its forty-second year, the Shell Wildlife Photographer of the Year Competition aims to find the very best photography worldwide featuring natural subjects. It's open to amateur and professional photographers worldwide and continues to be the most prestigious competition of its kind in the world."