Secrets of the Zoo

Tiger cubs decide to take on new turf, an orphaned baby manatee gets rescued from the wild and a male oryx approaches a herd of females.

There's drama behind the scenes at The Columbus Zoo and Aquarium as a cheetah goes under the knife. Plus, twin polar bear cubs jump in at the deep end.

Vets rush to save a pregnant warthog's life and staff play cupid with two kangaroos. Plus, it's party time when the zoo's oldest silverback gorilla turns 34.