Posted by Gigi Allianic, Communications Dhirin had a calm, sweet and sometimes aloof disposition. Photo: Dennis Dow/Woodland Park Zoo We are mourning the loss of our male snow leopard, Dhirin (pronounced DIH-dihn). The 17-year-old cat was humanely euthanized on January 17, following serious respiratory issues in addition to severe worsening of symptoms caused by kidney failure. The life expectancy for snow leopards in zoos is 17 to 19 years old. According to the Snow Leopard Trust , life in the wild is much harder, so the life expectancy of snow leopards in their natural habitat is more likely to be 10 to 12 years. According to Dr. Tim Storms, director of animal health at Woodland Park Zoo, the geriatric snow leopard had been diagnosed with renal disease more than a year ago, and the animal health team had been tracking the progression with trained blood collection and urinalyses. “In the last two weeks Dhirin had worsened quite dramatically, with changes in his respiratory pattern, es...