Mystic, the female mountain lion from the Phoenix Zoo, was put to sleep this week due to advanced renal failure.

PHOENIX — The Phoenix Zoo is mourning the loss of mountain lion, Mystic, who died earlier this week. The zoo announced the 18-year-old mountain lion was humanely euthanized due to health issues. >> ...

Mystic the Mountain Lion has died, the Phoenix Zoo said on May 15. She was humanely euthanized due to advanced renal failure.

Mystic, a female mountain lion who lived at the Phoenix Zoo for the past 17 years, has died. Mystic, 18, was declining ...

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