First panda twins of 2020 are born(1/7)

Fu Wa, a 17-year-old panda at the Chengdu Research Base of Giant Panda Breeding in Sichuan Province, gives birth to twin male pandas on March 17, 2020. (Photo provided to chinadaily.com.cn)

Fu Wa, a 17-year-old panda at the Chengdu Research Base of Giant Panda Breeding in Sichuan Province, gave birth to twin male pandas on Tuesday, the first weighing 159.8 grams and the second 119.5 grams.

It is rare for pandas to give birth in the spring, base researcher Wu Kongju said.

Staff workers at the Chengdu Research Base of Giant Panda Breeding in Sichuan Province take care of the newborn cubs on March 17, 2020. (Photo provided to chinadaily.com.cn)

A photo of one of the panda cubs on March 17, 2020. (Photo provided to chinadaily.com.cn)

A photo of one of the panda cubs on March 17, 2020. (Photo provided to chinadaily.com.cn)

A staff worker at the Chengdu Research Base of Giant Panda Breeding in Sichuan Province takes care of Fu Wa, a 17-year-old panda after she gave birth to twin male pandas on March 17, 2020. (Photo provided to chinadaily.com.cn)

Fu Wa, a 17-year-old panda at the Chengdu Research Base of Giant Panda Breeding in Sichuan Province, gives birth to twin male pandas on March 17, 2020. (Photo provided to chinadaily.com.cn)

Fu Wa, a 17-year-old panda at the Chengdu Research Base of Giant Panda Breeding in Sichuan Province, gives birth to twin male pandas on March 17, 2020. (Photo provided to chinadaily.com.cn)