COLUMBIA — Riverbanks Zoo and Garden said goodbye to a prized rarity: its only tiger. On March 26, Koshka the Amur tiger was euthanized after years of fighting intervertebral disc disease ...

An Amur tiger that entertained guests at the Riverbanks Zoo and Garden for nearly two decades has died, zookeepers announced. Koshka, a 19-year-old Amur, or Siberian, tiger, was euthanized this week ...