Red pandas typically have only 2-3 cubs in a litter, and occasionally there might be four.
Although Red Bean had an ultrasound at the beginning, it could only confirm whether she was pregnant or not; the exact number of cubs she was carrying couldn't be determined.
The ultrasound was done to determine whether it was a true pregnancy or a pseudo-pregnancy. Previously at the Panda Base, a female panda, because she was fond of the cool air-conditioning, would have a pseudo-pregnancy every summer so she could stay inside and not go out, comfortably enjoying the air-conditioning, which was quite a helpless situation.
After watching Red Bean nurse the two cubs for a long time, and seeing the cubs quiet down to sleep and rest, everyone concluded there probably weren't any more.
Everyone's faces were filled with smiles, appreciating the adorable sleeping positions of the cubs, when Fang Ye seemed to remember something.