News Archive

Spring has sprung and the giant pandas are breeding again at the Smithsonian's National Zoo. Scientists detected a rise in urinary estrogens March 26, in its female giant panda Mei Xiang (may-SHONG). This rise and her behaviors indicated that Mei Xiang was in estrus and ready to breed. A team of Zoo...

Breeding season has arrived! Mei Xiang and Tian Tian are exhibiting behaviors indicating that they are ready to breed; and Mei Xiang's hormones have begun to rise. That rise indicates that she is in estrus. Our giant panda breeding team — including Zoo keepers, reproductive scientists, veterinarians...

This week's giant panda news features a behavior update from keeper, Nicole MacCorkle. Both Mei's and Tian's appetites have decreased a bit this week. Tian is bleating more at Mei (a high pitched contact call), and she is vocalizing back, although her vocalizations are anything but friendly. She...

We are continuing to monitor Mei Xiang's hormone levels very closely, but her hormones are still at baseline. Once Mei Xiang's hormones begin to rise we will know that she has entered estrus. Though she is still in the pre-estrus phase, Mei has started showing increased activity and we have noticed...

Dr. Pierre Comizzoli is a reproductive cryobiologist at the Smithsonian Conservation Biology Institute. In this giant panda update he explains how the Zoo stores semen for endagered wildlife, which can be used for procedures like an artificial insemination. The team of people at the Zoo who study...

In addition to the research Zoo scientists and their Chinese colleagues conduct on giant pandas, they also study red pandas. In this update Dr. Copper Aitken-Palmer, lead veterinarian at the Smithsonian Conservation Biology Institute's Department of Conservation Medicine, writes about the research...

Dr. Copper Aitken-Palmer is the lead veterinarian at the Smithsonian Conservation Biology Institute's Department of Conservation Medicine. In the past few months she and other Zoo scientists have traveled to China for different giant panda conservation initatives. Below she writes about some of...

Over the next few months we'll be bringing you giant panda updates that will focus on Mei Xiang and Tian Tian, and the research Zoo scientists conduct related to giant pandas around the world. You'll be hearing from many different experts at the Zoo and the Smithsonian Conservation Biology Institute...

Seven days and counting. . . If you're a panda fan or if you know a panda fan—we have the perfect Valentine's Day gift for you! Send a giant panda Critter Cupid — complete with a special video featuring Mei Xiang, Tian Tian and one of our panda keepers! In the video, Juan tells the story of Mei and...

Mei Xiang's den has been transformed for the new breeding season! Observant panda cam viewers have no doubt seen the difference in the configuration of the barred barriers. By shifting the angle of the bars, keepers will be able to have more direct access to Mei Xiang and future cub(s) while they...

One of the biggest questions scientists at the Smithsonian Conservation Biology Institute (SCBI) were working hand-in-hand with their colleagues in China to understand in the late 1990s was: why are pandas 'challenged' at reproducing? Almost a decade later, scientists are still answering questions...