
One of the largest and most popular zoos in the U.S., Ohio's renowned Columbus Zoo and Aquarium and its conservation park The Wilds, houses more than 10,000 animals on 12,000 acres. It's also the part-time home of beloved wildlife guru Jack Hanna, the zoo's director emeritus. Nat Geo Wild is taking viewers inside the grounds and allowing them to experience what visitors can't: compelling, heartwarming stories, and behind-the-scenes moments and adventures. "Secrets of the Zoo" introduces both the animals and the legions of workers who create unforgettable connections between people and wildlife.

A monkey shows its true colors; a gigantic female bison gets a checkup.

A few baby otters have to learn how to swim, as they have been chosen as ambassadors for the zoo and will soon have their first television appearance; a baby giraffe is captivating the staff of the zoo.

Two of the zoo's cats receive some high-tech assistance in the baby-making department.

Two baby white rhinos join the herd; a pair of red pandas have a blind date in a tree; a tortoise confuses doctors.