Sebastian Kennerknecht / Sea Otter (Enhydra lutris) veterinarians Mike Murray and Marissa Viens performing surgery on rescued otter as volunteers look on, Monterey Bay Aquarium, Monterey Bay, California

Suzi Eszterhas / Southern sea otter (Enhydra lutris) veterinarian Mike Murray performing surgery on captured otter to remove time depth recorder as part of long term study, Big Sur Coastline, California, USA September...

Suzi Eszterhas / Southern sea otter (Enhydra lutris) researcher Tim Tinker and veterinarian Dr. Mike Murray handling anesthetized otter after taking blood samples and tagging flippers, Big Sur Coastline, California, U...

Suzi Eszterhas / Southern sea otter (Enhydra lutris) veterinarian D. Mike Murray examining teeth of captured otter as part of long-term study, Big Sur Coastline, California, USA September 2010

Sebastian Kennerknecht / Sea Otter (Enhydra lutris) veterinarian Mike Murray performing surgery on rescued otter, Monterey Bay Aquarium, Monterey Bay, California

Sebastian Kennerknecht / Sea Otter (Enhydra lutris) veterinarian Mike Murray stitching up rescued otter after surgery, Monterey Bay Aquarium, Monterey Bay, California

Sebastian Kennerknecht / Sea Otter (Enhydra lutris) veterinarian Mike Murray performing surgery on rescued otter, Monterey Bay Aquarium, Monterey Bay, California

Sebastian Kennerknecht / Sea Otter (Enhydra lutris) veterinarians Mike Murray and Marissa Viens performing surgery on rescued otter, Monterey Bay Aquarium, Monterey Bay, California