Thinking of Spring

While his parents prepare for spring, Yun Zi enjoys his new hammock in the garden room.

It’s almost springtime in San Diego, and spring is the time of year when we see many changes here at the San Diego Zoo. Our pandas are no exception to these changes. We are all very excited about the projects going on in Panda Canyon, as the pandas will have some new neighbors (see Panda Canyon Changes), new climbing structures, and something else new to focus on—breeding season. Until the construction projects are completed, our pandas will be rotating on exhibit, so you never know who you will see. On Sunday it was a very relaxed adult female, Bai Yun, on the left-hand side, and in the right-hand enclosure was our adult male, Gao Gao. It was great to see them enjoying the sun and, as usual, kicking back and eating their bamboo.

Many Zoo guests have been asking us if Gao Gao and Bai Yun will have another cub. Only the pandas know for sure. If our black-and-white duo were wild pandas, they would be nearing the end of their lifespan; since they live in a beautiful managed-care situation, however, they could live into their 30s. So how old can a giant panda be and still conceive a cub? This seems to be a popular question. One panda that we know of gave birth at the age of 20, so it is not unreasonable to think that Bai Yun and Gao Gao may produce one more cub. Bai Yun is currently 19 years old (her birthday is September 7), and she seems very active. Watching her play last month with youngster Yun Zi, it seemed that she had absolutely no trouble keeping up. She would wrestle with him in play sessions, and sometimes, when Yun Zi thought he was done, Bai Yun would drag him back toward her for more.

So we are all very optimistic for our panda couple to mate this spring and for Bai Yun to have another baby. The female giant panda is in estrus for only one to three days during the entire year, and she skips a year of breeding if she is caring for her young. This is Bai Yun and Gao Gao’s year—we are hoping for some “romance” in late March or early April.

Michelle Penick is a panda narrator at the San Diego Zoo. Read her previous post, Big Steps Toward Independence.

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