This incredible picture shows four polar bears fighting over a whale carcas in Svalbard, August 2009. The photo is photographed by American wildlife photographer Steve Kaslowski, 40, from Seattle, during an expedition to Norway's remote Svalbard archipelago in August. A marine mammal expert and spokesperson from the World Wildlife Fund for Nature believes the several bears captured in the series could be further evidence the polar bear population in the region is increasing. [CFP]