Six weeks after three snow leopards were born at the Woodland Park Zoo, zoo staff were forced to euthanize one of the cubs, who was suffering from early heart failure. The male cub was born with ...

Woodland Park Zoo has euthanized an aging male snow leopard. Tests show that 19-year-old Yaz had advanced, age-related kidney disease. Snow leopards typically live to be 17 to 19 years old in zoos ...