The rising waters wrecked the animals' enclosures, sending tigers, lions, bears, wolves and at least one hippo into the streets of the Georgian capital.
Zoo nutritionists these days have to do more than try to keep displayed animals happy and healthy. Sometimes the goal is to bring endangered wildlife back from the brink.
Veterinarian Vint Virga works with pets and zoo animals on behavior disorders. He talks about how house cats are more fulfilled when they forage for food, and how to show animals affection.