Our three 10-year-old gray wolves were given a clean bill of health at their triennial examinations in early November. Northwest Trek Head veterinarian Dr. Allison Case led the exams with the assistance of veterinary technician Tracy and keepers Haley, Carly, and Aynsley. On average, gray wolves weigh 75 to 110 pounds. At their exams, Canagan, the resident male wolf, weighed 103 pounds, and females Tala and Darci both weighed 83 pounds. Each wolf received a complete checkup: full physical exam, blood and urine analyses, vaccinations, X-rays, nail trims, and a dental cleaning. And, of course, Dr. Case ensured the wolves …

Once upon a time there were two wolf species: red wolves and gray wolves. Neither of them were “big and bad,” but they were often feared by humans. Over time, more and more were hunted. By 1940 gray wolves were decimated in the American wild and by the 1970s, so were red wolves. It was time for the story’s hero to step in. “Humans have a long history of blaming predators for problems, like wolves and grizzly bears,” says Marc Heinzman, zoological curator at Northwest Trek. “But scientific data shows that’s just not true in all cases.” While it’s true …