HONG KONG-CONSERVATION-ENVIRONMENT-ANIMAL-DOLPHIN

This photo taken on March 17, 2012 shows a Chinese white dolphin swimming in waters off the coast of Hong Kong. Conservationists warned on May 6, 2013 that Hong Kong may lose its rare Chinese white dolphins, also known as pink dolphins for their unique colour, unless it takes urgent action against pollution and other threats. Their numbers in Hong Kong waters have fallen from an estimated 158 in 2003 to just 78 in 2011, with a further decline expected when figures for 2012 are released next month, said the Hong Kong Dolphin Conservation Society. AFP PHOTO / LAURENT FIEVET