Pebbles, a giant tortoise at the Saint Louis Zoo, gets checked out by John P. Kirby, M.D. (far right), assistant professor of surgery and director of the School of Medicine’s Wound Healing Program. Kirby treated a wound on Pebbles’ shell, with assistance from Linda Stamm (far left) and Laurel Wiersema-Bryant, nurse practitioners at Barnes-Jewish Hospital, and Zoo veterinarian Michael Adkesson.