A Baiji dolphin raises its head above the water in Wuhan aquarium in the Chinese Academy of Sciences, April 18, 2012. Also known as “Chinese river dolphin”, it lives in the Yangtse River and is credited as “panda in the water”. It belongs to protected second class animal in China because its population is decreasing at a speed of 5 to 10 percent annually. (Xinhua/Cheng Min)