Secrets of the Zoo: North Carolina

Zoo keepers prepare for a chimp birth, while vets investigate a bear's mystery illness.

A gorilla has emergency surgery, while zoo keepers try to take blood from a lion's tail.

Zookeepers prepare for the birth of a white rhino; two young lions leave the pride.

The zoo hopes for a polar bear pregnancy. Two endangered red wolves go on a blind date. A young elephant gets some unusual treatment.

The zoo welcomes a new, timid giraffe to the herd. A pregnant bat prepares to give birth and an epileptic chimp gets a better life.

The vets are swamped as a gator needs blood drawn and a lion requires a tooth extraction.