Volunteers release a sea turtle back to the sea in Lingshui County, south China's Hainan Province, Aug. 9, 2020. Ninety-nine sea turtles, either stranded or confiscated by law enforcement, were released back to the sea on Sunday. Researchers attached tracking devices to ten of them to learn about their habits and habitats. (Xinhua/Zhang Liyun)

Volunteers release a sea turtle back to the sea in Lingshui County, south China's Hainan Province, Aug. 9, 2020. Ninety-nine sea turtles, either stranded or confiscated by law enforcement, were released back to the sea on Sunday. Researchers attached tracking devices to ten of them to learn about their habits and habitats. (Xinhua/Zhang Liyun)

A released sea turtle swims in the sea in Lingshui County, south China's Hainan Province, Aug. 9, 2020. Ninety-nine sea turtles, either stranded or confiscated by law enforcement, were released back to the sea on Sunday. Researchers attached tracking devices to ten of them to learn about their habits and habitats. (Xinhua/Zhang Liyun)

Released sea turtles swim in the sea in Lingshui County, south China's Hainan Province, Aug. 9, 2020. Ninety-nine sea turtles, either stranded or confiscated by law enforcement, were released back to the sea on Sunday. Researchers attached tracking devices to ten of them to learn about their habits and habitats. (Xinhua/Zhang Liyun)

Released sea turtles swim in the sea in Lingshui County, south China's Hainan Province, Aug. 9, 2020. Ninety-nine sea turtles, either stranded or confiscated by law enforcement, were released back to the sea on Sunday. Researchers attached tracking devices to ten of them to learn about their habits and habitats. (Xinhua/Zhang Liyun)

Volunteers release a sea turtle back to the sea in Lingshui County, south China's Hainan Province, Aug. 9, 2020. Ninety-nine sea turtles, either stranded or confiscated by law enforcement, were released back to the sea on Sunday. Researchers attached tracking devices to ten of them to learn about their habits and habitats. (Xinhua/Zhang Liyun)