Gray wolf at Detroit Zoo dies during surgery to remove mass

Associated Press

Royal Oak – The Detroit Zoo says an 11-year-old gray wolf has died during surgery to remove a mass in her chest.

FILE -- Two gray wolves named Kaska, left, and Wazi check out the recycled holiday evergreen trees that were donated to the Detroit Zoo in Royal Oak, January 5, 2017.

Zoo officials say Wazi suffered cardiac arrest and died Monday. The mass had been discovered during a health exam, and veterinarians determined surgery was the only option because of its size and location.

The zoo says in a statement the wolf “was intelligent, fearless, curious and sassy,” and “adored” by employees, volunteers and visitors.

The zoo’s lone surviving wolf is a male named Kaska.