Calgary Zoo tiger Katja euthanized, necropsy shows ovarian cancer

CALGARY — Days after the Calgary Zoo animal care team became concerned about the health of Amur tiger Katja, the 19-year-old cat was euthanized. A necropsy done Tuesday morning determined Katja was suffering from ovarian cancer and related issues. Animal caregivers had noticed changes in her behaviour in recent days, including a decreased appetite and activity level. “Our veterinary team examined her (Monday) under anesthesia and determined that the health changes Katja was experienc