Zoology: Saving Punta San Juan: Peru03

MaryAnn Duda, a veterinary technician for the Brookfield Zoo, at left, Dr. Jenny Meegan, a veterinarian at National Marine Mammal Foundation, in San Diego, at center, and Dr. Michael Adkesson, vice president of clinical medicine at the Brookfield Zoo, at right, draw up medications to tranquilize South American sea lions so the team can collect body samples and measurements to assess the animals' health.

MaryAnn Duda, a veterinary technician for the Brookfield Zoo, at left, Dr. Jenny Meegan, a veterinarian at National Marine Mammal Foundation, in San Diego, at center, and Dr. Michael Adkesson, vice president of clinical medicine at the Brookfield Zoo, at right, draw up medications to tranquilize South American sea lions so the team can collect body samples and measurements to assess the animals' health.