A staff member checks the condition of a Chinese alligator egg at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. More than 1,000 artificially-bred Chinese alligators at the Anhui Chinese alligator national nature reserve entered their hatching period in recent days. Photo: Xinhua

Staff members check the condition of baby Chinese alligators at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. More than 1,000 artificially-bred Chinese alligators at the Anhui Chinese alligator national nature reserve entered their hatching period in recent days. Photo: Xinhua

Baby Chinese alligators break their eggshells at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. More than 1,000 artificially-bred Chinese alligators at the Anhui Chinese alligator national nature reserve entered their hatching period in recent days. Photo: Xinhua

Baby Chinese alligators are seen in a breeding box at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

A staff member checks the condition of baby Chinese alligators at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

Baby Chinese alligators are seen in a breeding box at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

Baby Chinese alligators are seen in a breeding box at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

A staff member changes water of the breeding box for baby Chinese alligators at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

A baby Chinese alligator breaks its eggshell at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

A staff member checks the condition of baby Chinese alligators at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

Baby Chinese alligators are seen in a breeding box at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

Baby Chinese alligators are seen in a breeding box at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

Baby Chinese alligators are seen in a breeding box at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

A staff member checks the condition of a baby Chinese alligator at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 31, 2021. Photo: Xinhua

The first batch of artificially-bred Chinese alligators of this year are seen at the Anhui Chinese alligator national nature reserve in Xuancheng City, east China's Anhui Province, Aug. 19, 2021. Photo: Xinhua