The only tiger at Columbia's zoo was put to rest after years of battling with spine disease
Koshka the Amur tiger was euthanized on March 26 after years of fighting a degenerative spine disease that impacted mobility.
Zoo Knoxville welcomes Jango, one of the world's most genetically valuable Malayan tigers
Zoo Knoxville said Jango, a valuable 10-year-old Malayan tiger, was moved to East Tennessee to support species survival.