Fang Ye found it very amusing!
Guan Shan said Chestnut and Red Bean chase each other around like that several times every day—they're just like a pair of happily quarreling foes.
Then, they went on to the giant panda exhibit.
Giant pandas also mate in the spring, usually from late March to early April, though some of the later ones might not mate until June.
Under captive conditions, female giant pandas reach sexual maturity around 4 years old, males around 6 years old, while in the wild, pandas mature a bit later.
Cloud and Zhuangzhuang were both a little over 4 years old. Cloud was already showing signs of estrus and was ready to mate, but Zhuangzhuang would have to wait another year or two.
First, they went to the back to see Cloud, who was also restlessly pacing back and forth in the back house.
Lately, for some reason, she felt extremely itchy and uncomfortable, as if there were many ants crawling over her.
"Mmm—! Mmm—!"
She kept making sharp cries.