Zoology: Saving Punta San Juan: Peru03

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

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