Greg has a B.A. in biology from Gettysburg College, an M.S. in biology with a concentration in marine biology from Northeastern University, and a V.M.D. from the University of Pennsylvania School of Veterinary Medicine (1988). He worked for a large wholesaler of ornamental fishes before joining the faculty at the NC State College of Veterinary Medicine in 1993, where he is Professor of Aquatic, Wildlife, and Zoological Medicine. He is a diplomate of the American College of Zoological Medicine and the European College of Zoological Medicine. Greg is an author on over 200 popular and scientific articles and speaks locally, nationally and internationally. He’s also authored or co-authored over 30 book chapters and edited or co-edited five veterinary textbooks. Greg has made 21 trips to the Galápagos doing conservation work on a wide variety of native species. He and his wife, Dr. Diane Deresienski (also a veterinarian and NC State professor), live in Raleigh.

Olivia Petritz completed her undergraduate and veterinary degree at Purdue University in Indiana. Following graduation, she completed a small animal medicine and surgery residency at a specialty hospital in San Diego, CA followed by an exotic animal internship at Gulf Coast Avian and Exotics in Houston, TX. Dr. Petritz returned to California to complete an ACZM residency at the University of California, Davis in companion exotics and zoo medicine, and achieved board certification in November of 2013. She then started an exotics service at a specialty hospital in Los Angeles and worked there for three years prior to coming to NC State.

Sarah Ozawa received her DVM from the University of Wisconsin. Following graduation, she completed a small animal rotating internship at the University of Tennessee and then a residency in zoological companion animal medicine at the University of California-Davis. She is currently a Clinical Assistant Professor at North Carolina State University. Her research interests include small mammal medicine and cardiovascular disease.