An Irrawaddy dolphin (R) performs with two pink dolphins at the Oasis Sea World marine park in Chantaburi, nearly 290 km (190 miles) southeast of Bangkok on December 20, 2003. The park was raided by Thai officials a day earlier, who were looking for evidence it had sold five pink dolphins to a Singapore water park using fake papers claiming the dolphins were bred in captivity. Pink dolphins, also known as Indo-Pacific humpback dolphins, are among the world's most endangered species. REUTERS/Adrees Latif AL