Endangered Species Program
Conserving the Nature of America

FAIR USE NOTICE - This website may contain copyrighted material the use of which has not been specifically authorized by the copyright owner. We are making such material available in our efforts to advance understanding of the Endangered Species Act and its implementation. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, the material contained in this document is distributed without profit for educational and research purposes. For more information go to this site. If you wish to use copyrighted material for purposes of your own that go beyond 'fair use', you must obtain permission from the copyright owner.

Inside the National Zoo's Hormone Lab (Giant Panda Pregnancy Watch)
Produced by: Smithsonian Videos
Partners: National Zoo and Conservation Biology Institute


When animal care staff at the Smithsonian's National Zoo need to know when to breed their pandas or when to expect a cub they turn to the Endocrine (Hormones) Research Lab at the Zoo's Front Royal, Virginia. This facilitylab—one of the largest in the world—is dedicated to enhancing the reproduction and well-being of animals living in zoos and in the wild. Lab technician Sarah Putman explains one of the most frequent questions asked about the pandas: Why is there no panda pregnancy test?

Last updated: June 20, 2011