Photo taken on April 22, 2020 shows the release of the Chinese sturgeons to the Yangtze River in Yichang, central China's Hubei Province. About 10,000 second filial generation Chinese sturgeons were released into the Yangtze River on Wednesday to increase wild stocks of the rare species.Photo:Xinhua

Photo taken on April 22, 2020 shows the release of the Chinese sturgeons to the Yangtze River in Yichang, central China's Hubei Province. About 10,000 second filial generation Chinese sturgeons were released into the Yangtze River on Wednesday to increase wild stocks of the rare species.Photo:Xinhua

Photo taken on April 22, 2020 shows the release of the Chinese sturgeons to the Yangtze River in Yichang, central China's Hubei Province. About 10,000 second filial generation Chinese sturgeons were released into the Yangtze River on Wednesday to increase wild stocks of the rare species.Photo:Xinhua

Photo taken on April 22, 2020 shows the release of the Chinese sturgeons to the Yangtze River in Yichang, central China's Hubei Province. About 10,000 second filial generation Chinese sturgeons were released into the Yangtze River on Wednesday to increase wild stocks of the rare species.Photo:Xinhua

Photo taken on April 22, 2020 shows the release of the Chinese sturgeons to the Yangtze River in Yichang, central China's Hubei Province. About 10,000 second filial generation Chinese sturgeons were released into the Yangtze River on Wednesday to increase wild stocks of the rare species.Photo:Xinhua

Photo taken on April 22, 2020 shows the release of the Chinese sturgeons to the Yangtze River in Yichang, central China's Hubei Province. About 10,000 second filial generation Chinese sturgeons were released into the Yangtze River on Wednesday to increase wild stocks of the rare species.Photo:Xinhua