Chinese alligator (Alligator sinensis) is an endangered species that is endemic to China. In the history, it used to distributed in the Yangtse and Yellow River drainage area widely. As a result of habitat loss and serious illegal hunting, the wild population has been close to extinct during the past decades. In the 1970's, the Anhui Research Center of Chinese Alligator Reproduction and Changxing Nature Breeding Research Center for Chinese alligator were established successively. By now, although the...