Secrets of the Zoo: North Carolina

A gorilla has emergency dental surgery, vets examine a deadly rattlesnake and zoo keepers try to take blood from a lion’s tail.

The zoo hopes for a polar-bear pregnancy; two endangered red wolves go on a blind date; and a young elephant gets some unusual treatment.

The doctors at the North Carolina Zoo are swamped! A huge alligator, with a history of illness, needs blood drawn, and a ferocious lioness goes under the knife to remove a cracked tooth.

Zoo vets treat seven pythons; orphaned otter pups go to fish school; and keepers rush to help Arctic foxes with mysterious injuries.