One of the newly-born twins panda cubs grimaces in its incubator at the Madrid Zoo, yesterday.
The cubs, born on Thursday, are the first giant panda twins to be conceived using the artificial insemination method outside of China.
One of the newly-born twins panda cubs grimaces in its incubator at the Madrid Zoo, yesterday.
The cubs, born on Thursday, are the first giant panda twins to be conceived using the artificial insemination method outside of China.