As Bai Yun and her cub continue to do well, staff at the San Diego Zoo’s Giant Panda Research Station have slowly begun to emerge from the constant efforts of watching over the den activities to return to tasks put aside during the crucial early postpartum period. I’ve been reading through some of your comments and questions and thought I could offer some feedback.
Regarding the repeated questions regarding Bai Yun’s age, her health, and her behavior with this cub: Bai Yun is doing just fine! She has been resting a lot, which is entirely normal at this stage postpartum. If this is your first panda cub, I encourage you to read through our blog archives and see that sluggishness on the part of momma bear is de rigueur at this stage. Pandas are bears, after all, and many bears experience months of fasting and rest coupled with the birth and early postpartum rearing of their young (see Pandas, Bears, and Pregnancy).
There have been some really good scientific papers written on the magnificent ability of female bears to lactate and care for their young without eating for long periods, noting that very little muscle wastage is evident despite these energetically costly events. Please don’t worry about Bai Yun. She is built for this, and she is taking good care of herself as well as of her cub. We are very pleased with their progress so far.
As an aside: you can see the activities in the den well, but you can’t see what Bai Yun is doing when she leaves the den. She has been getting regular drinks since day 1 postpartum. She has even been observed feeding on occasion. Although she isn’t consuming much yet, she has spent a little time feeding on bamboo and even snacked on biscuits. Her appetite will come back much faster than those cold-weather hibernators, but it is a gradual process. She is making expected changes to her intake every few days.
A few of you noted that the camera has been showing fewer close ups lately. We’ve started to add our other responsibilities into our day, and so when we do leave the monitoring room, we zoom out so the whole den is visible. I’ve noted that some of you are quick to record snippets of video when there is a nice, tight zoom on the cub. Keep sharing your videos with each other so that everyone can benefit from those close ups!
As to the heat in the area: yes, it’s been blazingly hot and humid in San Diego in the last week. But, as our moderator indicated, there is air conditioning in the bedroom area that opens to the den. This air is set to a constant temperature and can filter into the den. Even so, it can get hot in those mountains of China in the summertime; I recall a very sweaty walk up to George Schaller’s former research base in Wolong one summer afternoon. It was baking. The upshot is that these bears can handle a little heat, and Bai Yun has been very comfortable.
We still haven’t had the opportunity to take the new cub out of the den for its first exam. Bai Yun has been leaving the den, though not yet for the long periods we need to see before cub exams begin. That could change at any moment, based upon her needs, so stay tuned! Until that first cub exam, we won’t have a way to determine the gender of this youngster.
Suzanne Hall is a senior research technician for the San Diego Zoo Institute for Conservation Research. Read her previous post, Panda Cub: Furry and Fine.