Research Experience: 1982–Now: Ecology, rearing, behaviour, acoustics and conservation of baiji, the Yangtze finless porpoise and some other aquatic animals at the Institute of Hydrobiology, CAS Research Directions： Reproductive theoretics and technique for finless porpoise in captivity and semi-natural condition; Population dynamics monitoring and habitat conservation of Yangtze cetaceans and Chinese white dolphin in wild; Conservation genetics of Yangtze cetaceans and Chinese white dolphin; Endangered mechanism and conservation strategy for finless porpoise and Chinese white dolphin; Sonar mechanism and behavioural ecology of finless porpoise; Acoustic communication and vocal behaviour of finless porpoise, Chinese white dolphin, Chinese alligator, giant salamander and seals; Assessment on hydro-project’s impact on aquatic mammals, bio-diversity and conservation strategy.