
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 young kangaroo named Fergus gets a gut check in the love department.

Doctors rush to save a cheetah; rescued macaws get a new life at the zoo; polar bear cubs go off the deep end.

Tiger cubs take on new turf; an orphaned baby manatee is rescued from the wild; a male oryx makes his move on a herd of females.

A special bonobo gives the vet team a scare on the way to her annual exam; two Asian small-clawed otters show off their X-ray training skills.