Animal caretakers at Utah's Hogle Zoo had to say goodbye to a tiger who unexpectedly died from urinary and bladder issues ...

THE SPRAWLING WILD FORESTS of northeast Asia are home to enviable roster of charismatic fauna—shaggy wolves and elusive ...

Nikolai, a 15-year-old Amur tiger, died Friday after having been diagnosed earlier this year with urinary and bladder issues.

Hogle Zoo’s 15-year-old Amur tiger, Nikolai, has passed away following complications related to urinary and bladder ...