This is an expected development. Our previous panda cubs were often found resting high in the trees for hours on end. Sometimes it meant our visitors were unable to see them well from the viewing areas on the ground. That may also happen with Su Lin. But take heart! Climbing high serves a purpose for the little panda, and we are happy that we are able to provide her with the environment she needs to express her natural behavior.
In the wild, a panda mother and her young have conflicting agendas. The cub still needs to rest a lot during the day, and the panda mother needs to feed on lots of bamboo in order to maintain her milk supply for her offspring. This conflict means that panda cubs are often alone for many hours at a time as momma wanders in search of fresh bamboo.
Small panda cubs are at risk of predation from other carnivores such as leopards. Since a cub isn’t capable of defending itself well in a physical encounter, the best defensive option for the little one is to climb. The cover of the trees may help a youngster escape a predator’s notice. By getting up high, the young panda is less vulnerable in an assault by leopards, who would have to attack from below. The cub can wait out the presence of a leopard until momma returns home. An adult panda outweighs any other carnivore in the mountains of Sichuan, and a leopard will not chance a battle with the panda mother.
Su Lin, like her siblings before her, is not a wild panda. Yet she has all of the same instincts of her wild brethren. When she is ready to settle in for a long nap she prefers to climb high, where she feels safe and secure. Although Bai Yun is never far away, Mother Nature insists that the young panda seek the security of the high branches.
We have some good climbing trees in the exhibit Su Lin shares with Bai Yun. However, not all branches are ideal for climbing. Some of the branches are weak, and some extend over areas- such as the public queue- that we wouldn’t want the pandas to fall into. We have therefore blocked off some branches with metal collars, which are intended to prevent the bears from getting further along a specific branch. Fortunately for Su Lin, most of the branches in her area are not collared, which leaves her with many options for those long naps in the trees.
Suzanne Hall is the panda research technician for the San Diego Zoo’s Office of Giant Panda Conservation.
View giant pandas on Panda Cam.