ESCRA Governing Members:

Leigh Duke, Ashley Zehnder, Tara Harrison

Ashley Zehnder, DVM, PhD, DABVP(Avian)
President and Founder, ESCRA

Vice President, lead investigator Exotic Tumor Database
North Carolina State University

ESCRA Project Manager:

Leigh Duke, DVM
North Carolina State University


Advisory Board Members:

Amy Boddy, PhD, University of California, Santa Barbara

Rachel Thompson, DVM, DECZM, Species360

Jason Somarelli, PhD, Duke Cancer Institute

Joshua Schiffman, M.D. Huntsman Cancer Institute-University of Utah

Catherine Dinitra White, PhD, North Carolina A&T State University





Lauren Howard, DVM, DACZM, San Diego Safari Park


Michelle Davis, DVM, DACZM, DECZM, Georgia Aquarium

Ruth Marcec-Greaves, DVM, PhD, Honduras Amphibian Rescue and Conservation Center







Zoo and Exotic Veterinarians

Jennifer Graham, DVM, DABVP(Avian), DACZM
Tufts University

Michelle Hawkins, DVM, DABVP(Avian)
Univ. of California-Davis

Joanne Paul-Murphy, DVM, PhD, DACZM
Univ. of California-Davis

David Sanchez-Migallon Guzman, LV, MS, DECZM, DACZM
Univ. of California-Davis

Ryan Colburn, DVM
John Ball Zoo, Grand Rapids, MI

Chris Bonar, VMD, Dipl. ACZM
Director of Animal Health at Dallas Zoo

Jb Minter, DVM, DACZM
North Carolina Zoological Park

Oncologists/Comparative Oncology :

Lisa Abegglen, PhD
Huntsman Cancer Institute-University of Utah
Pediatric Hematology/Oncology

Joanne Intile, DVM, MS, DACVIM
NCSU College of Veterinary Medicine

Univ. of California-Davis

Barb Kitchell, DVM, DACVIM
VCA Veterinary Care Animal Hospital and Referral Center


Brigid Troan, DVM, DACVP
North Carolina Zoo

Dalen Agnew, DVM, PhD, DACVP
Michigan State University – Pathology

Michael Garner, DVM, DACVP
Northwest ZooPath

In Memoriam: Drury Reavill, DVM, Dipl. ABVP (Avian, Reptile and Amphibian), DACVP
Zoo and Exotic Pathology Service (ZEPS) was instrumental in helping ESCRA with early case collection and was an avid supporter of our project.   Drury was and remains an outstanding asset to exotic and non-traditional animal medicine. She was a pioneer in the pathology of every zoo and pet exotic species, including exotic mammals, birds, reptiles and even fish.  She will be missed.


Anneke Moresco, MS, DVM, PhD
Reproductive Health Surveillance Program

Carlo Maley, PhD
Arizona State University

Cassondra Bauer, DVM, MS, ACVPM
WIL Research, Ashland, OH

Gunther Antonissen, DVM, PhD
Ghent University

Elizabeth Murchison, PhD
University of Cambridge