A baby giant panda plays on a tree at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





A baby giant panda is interested in a camera set up on a tree at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





Baby giant pandas play on a tree at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





A baby giant panda plays at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





Baby giant pandas play as breeders set up a camera at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





Baby giant pandas hold a breeder's leg at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





A baby giant panda plays at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





A baby giant panda is interested in a camera set up on a tree at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





Baby giant pandas hold a breeder's leg at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





A baby giant panda plays at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





A baby giant panda is interested in a camera set up on a tree at Chengdu Research Base of Giant Panda Breeding in Chengdu, Sichuan province, China, January 22, 2017. (Photo by Jason Lee/Reuters)





Staff take the 6-month-old giant panda twins to see the tourists at the panda house of Chongqing Zoo on January 22, 2017 in Chongqing, China. The giant panda boy and girl twins were born in July last year, and made their debut on Sunday in Chongqing Zoo. (Photo by VCG/VCG via Getty Images)





A staff holds a lens in front of the 6-month-old giant panda twins at the panda house of Chongqing Zoo on January 22, 2017 in Chongqing, China. (Photo by Li Wenbin/VCG via Getty Images)