Danger and drama are around every bend for elite workers of the Maine Warden Service, who are followed in this series as they navigate the Pine Tree State's rugged terrain during a busy and risk-filled hunting season. Whether they're tracking bears on mountain ranges, busting drunken drivers on ATVs, working undercover stings, or rescuing wayward woodsmen, these wardens risk their lives to protect animals and serve the people of Maine. The series also highlights fish and game officers in New Hampshire, who work tirelessly to preserve and protect the natural resources of the Granite State. The region's wild, rugged landscape attracts thousands of outdoors enthusiasts and makes the officers work diverse and demanding.

Georgia Aquarium in Atlanta is the subject of this documentary series, allowing Animal Planet unprecedented access to the Western Hemisphere's largest aquarium. It cares for thousands of animals in its 10 million gallons of water, including rescued Southern sea otters, endangered African penguins, rescued California sea lions, whale sharks, and manta rays. The series follows the daily activities of the aquarium's biologists, researchers and trainers, and tells of the bonds created between the creatures and the staff.

Dan McKernan relocated from Austin, Texas, to take over his family's 140-year-old farm in Michigan and transform it into the "Barn Sanctuary," a place for farm animals that have experienced abuse, neglect and more; the show follows Dan and his family as they learn the ropes of their new life on the farm and give the barnyard animals a second chance at life; it also documents his travels across the country to rescue barn animals.

Evidence suggests that species thought to be extinct are still very much alive, and wildlife biologist Forrest Galante ventures from the Florida Everglades to remote jungles in a search for the truth. Galante explores actual stories behind these creatures' purported demise and, using evidence like eyewitness accounts and last known photos, tries to prove their existence so he can protect them and help them thrive again. In Zanzibar, Forrest reveals species that have never before been filmed and captures evidence that leads to an unforgettable conclusion. Elsewhere, the investigation takes him to Taiwan for the Formosan clouded leopard, the frozen tundra of Newfoundland for the Newfoundland white wolf, and to the island of Madagascar to look for any trace of the giant Pachylemur.

Jeremy Wade is not a fisherman; he's an "extreme angler" in search of the biggest and most dangerous freshwater fish, the kind with a taste for human flesh. This action-adventure series also features Wade illustrating how these river monsters are constructed to kill.

"Pit Bulls and Parolees" follows the work of Tia Torres, a renowned trainer of pit bull terriers and a founder of the Villalobos Rescue Center. The rehabilitation and placement center houses hundreds of abused and abandoned dogs of all breeds, and the center has a crew of paroled felons who help Torres and her daughters Tania and Mariah care for the animals. It is a chance at redemption for both man and man's best friend.

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.

Animal Planet expands its family of wildlife law enforcement series, adding to Maine's "North Woods Law" an offering that follows an elite patrol force in Texas. "Lone Star Law" features the men and women of the Texas Game Wardens who protect more than a quarter-million square miles of deserts, lakes, piney woods, bayous, plains and coast in the second-largest state in the U.S. Whether rushing to investigate poaching cases, save flash-flood victims, disrupt illegal smuggling rings, or rescue injured wildlife, the officers are always on the go, defending both animals and citizens.

People who know and work with Pete Nelson describe him as a tree whisperer. For his part, Nelson lets the trees do the talking. He's a world-renowned treehouse designer and builder, and this series documents the work he and his team of craftsmen -- including his son Charlie -- do to create incredible homes and businesses in nature's canopy. Pete uses a combination of science and art to realize clients' sky-high aspirations of magnificent multibedroom treehouses with elaborate kitchens and bathrooms, or simpler, peaceful one-room escapes. "We awaken that inner child who dreams of living among the trees," Pete says. One-of-a-kind above-ground spaces featured in the series include a spa retreat, a brewery, a honeymoon suite, an Irish-themed cottage, and an 800-square-foot Texas treehouse with a full bath and flat-screen TV.

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.

This series explores the many facets of man's best friend via commentary by animal experts, personal stories from dog owners and stylized photography.

A look various baby animals and their first few months of life.

Four members of the Bigfoot Field Researchers Organization embark on a mission to find their creature. From small Southern towns to remote locations in Alaska and the Pacific Northwest, the foursome -- a high-school science teacher, a former roadie, a skeptical scientist and BFRO president Matt Moneymaker -- search for proof that Bigfoot is alive in the U.S. They examine photos and videos, speak to witnesses and use new technology to uncover evidence of the mysterious apelike cryptid that has eluded capture for centuries.

If your idea of an exciting aquarium is the run-of-the-mill rectangular variety with a few exotic fish thrown in, you're not welcome in the wet and wonderful world of Wayde King and Brett Raymer. The brothers-in-law, best friends and business partners operate Acrylic Tank Manufacturing, the biggest aquarium-building manufacturer in the U.S. "Tanked" showcases the guys, their family members who also work at ATM and the shop's crew as they create over-the-top aquariums for a wide array of clients, both celebrities and regular folks. The tanks range from 50 to 50,000 gallons in size, are filled with some of the world's most unusual, colorful and quirky fish, and are limited only by one's imagination.

Recounting the hauntingly true stories of people who found themselves in a life-or-death situation, face to face with a dangerous animal.

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.

A former Midwesterner, Dee Thornell moved to Alaska more than 25 years ago to pursue her life's mission: to care for wild and domestic animals of America's largest state. After starting her veterinary business out of a pickup truck, she now owns and operates Animal House, the most sophisticated veterinary hospital in Fairbanks, Alaska. Animal Planet documents her single-minded dedication to care for creatures like bald eagles, owls, chinchillas, beavers, iguanas, ox, moose and bears. It often requires her to leave the high-tech luxuries of her clinic and travel to remote villages by plane, four-wheelers, and even a horse and carriage. Once there, she relies on bare necessities to get the job done, while also dealing with subzero temperatures and days without daylight.

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.

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.

Part horror movie, part medical detective story, "Monsters Inside Me" depicts what happens when people fall prey to an infection from a parasite, those nasty microscopic creatures found in water, soil and even in the air. Victims' stories are retold, including how doctors and scientists attempt to unravel each case before it's too late. Biologist Dan Riskin, assisted by doctors and other authorities who are familiar with each story, leads the scientific discussion about the parasites.

Teams dedicate their lives to saving chimpanzee and gorilla populations that are being wiped out in the rainforests of Central Africa.