Twin giant pandas, Rui Bao, left, and Hui Bao, play at Everland Panda World in Yongin, Gyeonggi Province, in this photo provided by the amusement park, Friday, as the panda cubs mark their 100th day in the public eye. Courtesy of Samsung C&T

Twin giant pandas, Rui Bao, left, and Hui Bao, drink milk at Everland Panda World in Yongin, Gyeonggi Province, in this photo provided by the amusement park, Friday, as the panda cubs mark their 100th day in the public eye. Courtesy of Samsung C&T

Twin giant pandas, Rui Bao, left, and Hui Bao, play with their zookeeper at Everland Panda World in Yongin, Gyeonggi Province, in this photo provided by the amusement park, Friday, as the panda cubs mark their 100th day in the public eye. Courtesy of Samsung C&T

Ai Bao, a giant panda, licks her female twin panda cubs at Everland Panda World in Yongin, Gyeonggi Province, July 7, 2023, right after giving birth to them. The photo was selected as TIME's Top 100 Photos of 2023. Courtesy of Samsung C&T

Twin pandas born to mother Ai Bao and father Le Bao mark their 30th day since birth at Everland Panda World in Yongin, Gyeonggi Province, Aug. 7, 2023. Courtesy of Samsung C&T

Twin pandas, Rui Bao, center, and Hui Bao, right, play with their mother Ai Bao at Everland amusement park Panda World in Yongin, Gyeonggi Province, Sept. 7, 2023. Courtesy of Samsung C&T