The staff throws a polar bear party; Priya works with her husband on a shark exam.

A new sloth bear has major lung issues; a gator breaks out of restraints in an exam.

Everyone at the zoo awaits the birth of Zuri the giraffe's baby.

The staff at the Columbus Zoo can hardly contain itself as it prepares to make a home for an orphaned baby gorilla.

The Columbus Zoo and Aquarium makes room for three adorable new cheetah cubs.

A penguin stuck in molt for a year has hopefully seen the last of his bad hair days.

The keepers make their early morning breakfast rounds at the Heart of Africa exhibit.

Baby fever spreads, as a cheetah repopulation program goes into full effect.

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

A tiny loris goes in for a CT scan; Febreze the skunk sees a heart specialist.

A 600-pound manatee named Agua is released back into the wild after years at the zoo.

Phoebe the elephant goes into labor; Aurora the polar bear gets a root canal.

A mandrill needs life-or-death emergency care; an anaconda goes on a hunger strike.

Baby pronghorns meet their adult roommates for the first time.

A bonobo's exam gets off to a rocky start; a Bactrian deer needs medical attention.

At the Columbus Zoo, keepers form extraordinary bonds with the animals in their charge.

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

The team hits the coasts for animal conservation, returning two rescued manatees to their native waters.

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. Now, 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.

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.

From the operating room to the wilds, medical teams at the Columbus Zoo are ready for anything.

Located just 10 miles from New York's Times Square, the Bronx Zoo is a recognized world leader in animal care and species conservation. It houses more than 6,000 animals and has a staff of 500-plus people dedicated to their care and well-being. Never before have camera crews been granted full access to the 265-acre campus, until production of the docuseries "The Zoo," which was filmed over eight months. The results are stories focusing on dozens of animals and experiences at the facility, and its critical mission to conserve wildlife around the world. Episodes also highlight various employees and how their expertise and skills help provide top-quality care for the animals.

Chester Zoo is one of the most popular wildlife parks in Great Britain, attracting more than 1.8 million visitors annually. Through the use of cameras equipped with the latest technology, this program takes viewers behind the scenes of the zoo, capturing animal behavior close up, as well as the relationships the animals share with their keepers. Memorable scenes filmed over the course of the series include the birth of a baby giraffe, a pregnant viper getting X-rayed, chimps battling for dominance, and a red panda giving her partner the cold shoulder.

"The Zoo: San Diego" provides a behind the scenes look at the daily lives of various species of animals and the teams that care for them. Featuring two parks, the San Diego Zoo and the San Diego Zoo Safari Park, as well as the San Diego Zoo Institute for Conservation Research, San Diego Zoo Global is home to more than 700 species and 6,500 animals. A wide range of animals are introduced, including pandas, giraffes, Galapagos tortoises, koalas, elephants, mountain lions, two baby cheetahs that are learning how to be ambassadors for their species and a flock of ostriches known as the "Spice Girls." Besides the animals, the keepers and veterinarians at both the Zoo and the Safari Park -- many of whom have dedicated their lives to caring for animals, discuss what it's like to be a part of this world-renowned zoo.

Animal Planet adds to its staple of Colorado-based veterinary shows with one that follows the Henderson family practice in Lakewood. The Fox Hollow Animal Hospital was founded by Dr. Tony Henderson in 1996. It now includes Tony's sons Dr. Ross and Dr. Ryan and technician assistant Cole, plus the extended clinic family and numerous pets, including Tony's beloved golden retriever and sidekick, Lord Barrington. Drama and high stakes at the clinic with animals are part of the daily routine for this dynamic family, but so are jokes, laughter and love.

Carrying on late wildlife conservationist Steve Irwin's mission to bring people closer to animals is now the mission of his family. Terri, Bindi and Robert Irwin return to Animal Planet, giving viewers access to their wildlife adventures around the world and the amazing animals that continue to inspire their conservation efforts. The series features the family caring for more than 1,200 animals at the Australia Zoo; overseeing a world-class wildlife hospital, the largest of its kind in the world; and conducting high-level global expeditions.

Diarra Blue, Aubrey Ross and Michael Lavigne developed a strong friendship while attending Tuskegee University's College of Veterinary Medicine. After years of paying their dues, which included honing their surgery skills in Las Vegas, they decided to pursue their dreams of owning their own practice together. In 2015, Cy-Fair Animal Hospital opened its doors in Dr. Ross' home city of Houston. "The Vet Life" chronicles the doctors' juggling act running the full-service hospital and animal shelter while managing family lives filled with spouses, parents, in-laws, children, pets and friends.

From the creators of the real-time law enforcement series "Live PD" comes a version for animal lovers. It captures the fast-paced drama and intensity of a hospital procedural mixed with the unbreakable bonds between pets and their owners. Host Mark Steines ("Entertainment Tonight") is joined by veterinary experts in the studio to guide viewers through each episode, giving commentary on what is seen at featured animal hospitals and mobile vet clinics around the country. Cameras trail teams of emergency veterinarians and specialists as they work tirelessly through the night to save the lives of pets. The series also accompanies on-call vets to homes and farms to treat animals that are too sick or too big to travel.

Jeff Young has 80,000 friends in Denver. That's about the number of clients -- people and their pets -- he serves as the popular owner/lead veterinarian of Planned Pethood Plus, one of the busiest animal clinics in the U.S. This poignant series reveals some of the riveting cases that Dr. Jeff and his team of 30 veterinary experts respond to with precision, compassion and speed in an often tense, chaotic atmosphere. The staff juggles routine pet visits with several dozen daily crucial surgeries and emergencies. For animals in need outside of the clinic, Dr. Jeff finds time to take his services on the road, visiting farm and ranch animals in far-reaching communities and reservations within Colorado, neighboring states and beyond.