About us?

Dr. Graham Crawford is the Chief of Veterinary Services at the San Francisco Zoo where he has worked since 1993.  He is a California native and graduated from the University of California School of Veterinary Medicine at Davis in 1982.  He returned to  U.C. Davis and received a Masters of Preventative Veterinary Medicine (MPVM) emphasizing wildlife epidemiology in 2002. He has worked in Madagascar since 1996 on a number of lemur health and conservation projects, including the Black and White Ruffed lemur (Varecia variegata) restocking project in Betampona Reserve and Milne-Edwards sifaka (Propithecus edwardsii) biomedical evaluations in Ranomafana National Park.  He was the principle investigator for two wildlife health investigations,  Hair Loss Syndrome in Ring-tailed Lemurs (Lemur catta) at Berenty Reserve,  Madagascar and Johne’s disease in Tule Elk (Cervus elaphus nannodes) at Grizzly Island, California.  He has worked on other wildlife health projects in Costa Rica, Botswana, Kenya, Ivory Coast and Namibia.

Dr. Susan Ostapak has worked as a clinical veterinarian at the San Francisco Zoo since 2004.  She is a native of Saskatchewan, Canada and graduated from the Western College of Veterinary Medicine at the University of Saskatchewan. She has worked in Madagascar since 2000 on a number of wildlife projects, including the Black and White Ruffed Lemur (Varecia variegata) restocking project in Betampona Reserve, the investigation of hair loss in Ring-tailed Lemurs (Lemur catta) at Berenty Reserve, and the Plowshare Tortoise (Geochelone yniforna) recovery program at Ampijoroa. She has worked on other wildlife health projects in Zimbabwe, Ivory Coast and Costa Rica.  She is particularly skilled at managing field anesthesia, and teaching field techniques to students and veterinarians. 

           Chris Golden traveled to Madagascar the first time in 1999 when he was 16 years old.  He began by assisting on a carnivore research program focusing on the behavior, density and distribution of Malagasy carnivores (especially the fosa, Cryptoprocta ferox).  Throughout his undergraduate years, he would spend his summers in Madagascar, conducting carnivore research, creating environmental education programs, and ultimately creating the first bushmeat research program in Madagascar.  Beginning in the summer of 2004 and through collaboration with Wildlife Conservation Society, he initiated a bushmeat research program in the Makira Forest in northeastern Madagascar.  This forest is the largest remaining tract of rainforest in Madagascar, and a very important source of globally important biodiversity.  He was able to integrate himself into Malagasy culture through his fluency in Malagasy, especially the Betsimisaraka dialect, and this has provided him with a unique ability to conduct this type of research that bridges the fields of ecology, conservation, sociology and public health. He graduated from Harvard College in 2005 with a degree in Environmental Conservation and began his PhD in Environmental Science, Policy and Management at UC Berkeley in 2006. In May 2009, he completed a Masters in Public Health, Epidemiology.  His primary interests are wildlife ecology, conservation biology, human nutrition, and zoonotic disease transfer.  He sees his work following a path of investigations of the interconnectivity between bushmeat harvesting, sustainability, conservation policy, food security, and the burden of disease.  Currently, he is a joint PhD student in Justin Brashares and Claire Kremen’s lab.


          Adrian Mutlow has worked as the Clinical Veterinarian at the San Francisco Zoo since 2008. He graduated from the University of Cambridge and spent several years in practice in the UK before leaving his home country to start work in the USA. He completed the Master of Science in Wild Animal Health at the Royal Veterinary College / London Zoo in 1997 and a residency in Zoological Medicine at Kansas State University in 2003. He was the veterinarian for Rolling Hills Zoo, Kansas from 2001- 2008.  In 2000 he worked in Cameroon for 5 months at Limbe Wildlife Centre where he helped to care for the centre’s collection of primates orphaned by the bushmeat trade or confiscated after being held illegally as pets. Since starting work at San Francisco, he has been involved in the western pond turtle (Actinemys marmorata) recovery project in collaboration with Oakland Zoo and Sonoma State University. Recently, he was also able to assist the Durrell Wildlife Conservation Trust veterinarian with pre-release health examinations of Madagascan side-necked turtles at Ankarafantsika National Park, Madagascar.