A rehabilitation facility wants a tank with a spine insert; medical practitioners desire an underwater forest fish tank for their office.

Revisiting tanks Wayde and Brett have created for celebrities, including comic Tracy Morgan, actor Neil Patrick Harris and rock band Kiss.

Jenna and Sean are joined by resident elephants and a meerkat in an experiment - using the animals' sense of smell to discover whether the African puff adder, one of the world's deadliest predators, is truly odorless.

Emily anesthetizes a cheetah; Will bonds with rhino orphan Arthur; Emma has her hands full with a troop of mongooses.

There's a new arrival for Josie at the Vervet Monkey Foundation, catching up with eight-week-old Hector the hippo, and Alison is on a mission to tag a great white shark. Emily and Annie are called in to help a white rhino with a nasty horn injury.

It's vaccination day at the rhino sanctuary, and Rachel is worried about the orphan hawk, who has an eye infection; on the Eastern Cape, vet Emily is called to help four young sable antelopes who are being bullied by an older dominant male.

Robert continues his father's legacy as he faces off with Bosco, the most aggressive croc at the zoo; Bindi lends a hand when a koala needs eye surgery.

The Irwins go to the Steve Irwin Wildlife Reserve; Robert leads his first croc-catching team; Bindi and Chandler have a life-changing announcement.

There's a new arrival for Josie at the Vervet Monkey Foundation, catching up with eight-week-old Hector the hippo, and Alison is on a mission to tag a great white shark. Emily and Annie are called in to help a white rhino with a nasty horn injury.

It's vaccination day at the rhino sanctuary, and Rachel is worried about the orphan hawk, who has an eye infection; on the Eastern Cape, vet Emily is called to help four young sable antelopes who are being bullied by an older dominant male.

There's a new arrival for Josie at the Vervet Monkey Foundation, catching up with eight-week-old Hector the hippo, and Alison is on a mission to tag a great white shark. Emily and Annie are called in to help a white rhino with a nasty horn injury.

It's vaccination day at the rhino sanctuary, and Rachel is worried about the orphan hawk, who has an eye infection; on the Eastern Cape, vet Emily is called to help four young sable antelopes who are being bullied by an older dominant male.

A rehabilitation facility wants a tank with a spine insert; medical practitioners desire an underwater forest fish tank for their office.

Revisiting tanks Wayde and Brett have created for celebrities, including comic Tracy Morgan, actor Neil Patrick Harris and rock band Kiss.

A massive prehistoric, crocodilian creature known as the Gbahali kills people in Liberia; it may simply be a case of mistaken identity; it could be a super-sized species of crocodile more akin to a dinosaur than anything known today.

Mungo travels to Namibia to investigate the Dog-Headed Pig Monster, a creature that prowls through the night, preying on livestock and children. After an adrenaline-filled investigation in the African bush, Mungo captures the night stalker on camera.

A markhor goat gives birth to Andre, the biggest baby of the year; a baby bat requires human care before it can be reintroduced to its colony; confiscated lizards destined for the pet trade require urgent medical attention.

Keepers introduce three gaur, a large species of cattle, to the rest of the herd; a sickly sambar fawn is rushed to the health center; the bird department prepares for the arrival of great hornbills.

Bradley and Billy discover that the Yucatan thorn forest is the ideal home for the spiny-tailed iguana, but a perilous place for humans; the toughness of this uber-reptile is proven in the field lab, where its defensive skills are put to the test.

A difficult search of the Madagascan forest floor reveals the lowland tenrec, an animal that often tunnels underground and is loaded with ultra-sharp senses and defenses.

A man's devilish cat, Darkness has made his girlfriend fear for her safety after moving in together; a couple's four felines have turned their brand new home into a war zone.

Former reality star Peggy Tanous is struggling to keep the peace between her cat Shadow and her family. Meanwhile, a couple is desperate for Jackson to change the frisky behavior of their feline, Albert.

Villalobos is stretched thin when rescue calls come in one after another; a couple from rural Idaho visits the shelter; Mariah Torres and parolee Leigh help a neighbor whose dog has become too much to handle.

A family from Chicago comes to VRC hoping to find their first dog; in Assumption Parish, Tia takes in a dog that has been attacked and is near death; Earl mentors a young employee, trying to keep him out of trouble.

As the calls keep coming in, everyone has been stretched thin since Jimmy quit; Paul comes to the begrudging realization that it's time to replace him.

The Gator Boys are convinced now more than ever, after some sub-par volunteers and dangerous gators, that they really need to get Jimmy back; Ashley twists her ankle while trying to help Paul, turning a gator capture into a deadly situation.

With gator hunting season on the horizon, the Gator Boys race against time in Mississippi to find and rescue the gigantic gator known as Moby Dick, before the hunters catch a massive prize.

Paul is in search of a veterinarian who can perform a dangerous operation to fuse a gator's broken ribs back together while using a anesthetic that is life threatening to gators.

A woman who calls about a gator in her backyard, soon ends up volunteering for Gator Boys Alligator Rescue, but when Tre starts to teach her the ins and outs, the experience goes to his head and decides to open a gator wrestling class.

Paul has his hands full juggling nuisance gator catches and training new volunteer Caroline; Jimmy, Tre and Scott try to save a gator that swallowed a flip-flop.

Jimmy leaves town with Ashley and Andy to do his road show, while Paul has only newbie Caroline to help with gator calls.

Ashley shares her challenges and preparations for wrestling a gator and demonstrates how her work differs from the men's with a women's empowerment group.

Bob Freer makes the announcement that he is closing Everglades Outpost due to lack of funds after Jimmy gets bit by a gator; no outpost means no gator rescue as Paul races to keep the outpost open.

Paul has his hands full juggling nuisance gator catches and training new volunteer Caroline; Jimmy, Tre and Scott try to save a gator that swallowed a flip-flop.

Jimmy leaves town with Ashley and Andy to do his road show, while Paul has only newbie Caroline to help with gator calls.

Ashley shares her challenges and preparations for wrestling a gator and demonstrates how her work differs from the men's with a women's empowerment group.

Bob Freer makes the announcement that he is closing Everglades Outpost due to lack of funds after Jimmy gets bit by a gator; no outpost means no gator rescue as Paul races to keep the outpost open.

The Gator Boys are convinced now more than ever, after some sub-par volunteers and dangerous gators, that they really need to get Jimmy back; Ashley twists her ankle while trying to help Paul, turning a gator capture into a deadly situation.

With gator hunting season on the horizon, the Gator Boys race against time in Mississippi to find and rescue the gigantic gator known as Moby Dick, before the hunters catch a massive prize.

British Marine Pen Farthing is the founder of Nowzad, Afghanistan's only official animal sanctuary; when a U.S. soldier rescues six puppies while deployed and can't bring them back home, Pen and his team are on a mission to get them reunited.

Chimp expert Estelle Raballand has formed an incredible bond with Ponso, a chimp who lives alone on an island and has been dubbed the loneliest chimp in the world; she's determined to find him a companion and thinks she has found the perfect match.

A look at why a herd of wild elephants check into the same hotel every year and what is causing giant bubble rings off the coast of Portland, Maine.

A look at why a seal throws an octopus at a kayaker; why a moth is drinking from the eye of a bird in the Amazon jungle; what surprising creature has been leaping out of the Irish sea.

A look at how a dung beetle standing on its head can roll a ball in a straight line; if egrets ever regret hanging out next to hungry alligators; and what ghostly creature was caught on camera 3000 feet below the ocean's surface.

A look at which animals get the giggles; what would cause the sea lions of San Francisco to mysteriously swim away all at once, manta rays that synchronize swim.

A look at if its possible that a snake could exist totally undetected; what brought this big cat fight to ear piercing decibels; and why is this lone dolphin getting muddy.

A look at why crows leave gifts in suburban Seattle; how it's possible a shark can be older than America; and who is making the mysterious crop circles at the bottom of the sea in Japan.

A cat-obsessed woman gets a kitten as a gift, but is quickly disappointed when the cat terrorizes her other two felines; a couple living in harmony is disturbed by their newest addition's demonic ways.

A photographer who lives and works out of his home is at risk of losing his business and his assistant because of his bloodthirsty cat; a fat feline's love for food is bound to be his greatest downfall.

Tia decides to hire new parolees, but one parolee may blow his chance at redemption on the first day; shocking news about one of Villalobos' most beloved dogs, Creature, threatens to end his chances of being adopted.

Issues with the local community and government convince Tia to move the Villalobos Rescue Center from California to New Orleans.

Forrest travels to the Faroe Islands to look for any trace of the great auk; his passionate search for a large flightless seabird takes him through some of the most scenic and rugged terrain he's ever seen.

Deep in the jungles of Colombia, Forrest is on a mission to prove the Rio Apaporis Caiman still exists. Locals believe this crocodilian resides within a lawless land inhabited by guerilla rebels, kidnappers, and deadly predators.

Forrest is in the Galapagos seeking the Fernandina tortoise, an animal that was only seen once, over 100 years ago; the clues are here, along with an abundance of unique species, raising hopes of a historic discovery.

Forrest is determined to find out if the famously reclusive Ivory Billed Woodpecker still exists; the alligator and poisonous snake infested swamps of Louisiana make for a challenging mission, but he is prepared for anything.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

Forrest combs the Florida Everglades for a predator rumored to exist for years, the Black Panther; it might be a case of mistaken identity, but while scouring the landscape, discoveries suggest that it might be more than a rumor.

The southern Rocky Mountain wolf hasn't been seen in almost 80 years, but recent cattle attacks spark the possibility that is still exists; trekking high into the Sierras, Forrest is determined to bring it out of hiding.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.

Forrest combs the Florida Everglades for a predator rumored to exist for years, the Black Panther; it might be a case of mistaken identity, but while scouring the landscape, discoveries suggest that it might be more than a rumor.

The southern Rocky Mountain wolf hasn't been seen in almost 80 years, but recent cattle attacks spark the possibility that is still exists; trekking high into the Sierras, Forrest is determined to bring it out of hiding.

Deep in the jungles of Colombia, Forrest is on a mission to prove the Rio Apaporis Caiman still exists. Locals believe this crocodilian resides within a lawless land inhabited by guerilla rebels, kidnappers, and deadly predators.

Forrest is in the Galapagos seeking the Fernandina tortoise, an animal that was only seen once, over 100 years ago; the clues are here, along with an abundance of unique species, raising hopes of a historic discovery.

A look at why some spiders disco dance; a mysterious creature is preying on Europe's sheep; a whole town is engulfed by bubbling foam.

A look at what would cause a ferocious tiger shark to cuddle up with a diver and why pigs are swimming in the Caribbean; and what mysterious blobs have washed up by the thousands on the shores of Oregon.

A look at what could swallow 50-foot trees in seconds, and what animal has changed the face of Yellowstone.

A look at where to go to find an enchanted underwater forest; some Mexican rattlesnakes have lost their rattle; an Indian elephant.

Jenna and Sean are joined by resident elephants and a meerkat in an experiment - using the animals' sense of smell to discover whether the African puff adder, one of the world's deadliest predators, is truly odorless.

Emily anesthetizes a cheetah; Will bonds with rhino orphan Arthur; Emma has her hands full with a troop of mongooses.

There's a new arrival for Josie at the Vervet Monkey Foundation, catching up with eight-week-old Hector the hippo, and Alison is on a mission to tag a great white shark. Emily and Annie are called in to help a white rhino with a nasty horn injury.

Pete builds a triple-decker treehouse with a bedroom, kitchen, bathroom and more, inspired by Frank Lloyd Wright, on the shores of Kentucky's Lake Barkley.

Surrounded by fields of red poppies and intertwined within a giant live oak, Pete creates a dining room tree house with a Provence countryside feel as part of a French restaurant.

Pete builds ski lodge-style treehouse complete with an indoor-outdoor fireplace and a rooftop snowmaker for a ski-loving family.

Pete takes on his first international tree house in Norway; working alongside a local builder named Frode, the one-of-a-kind, 24-foot-high retreat accommodates eight and allows for stunning views of the nearby lake.

Pete's son Charlie oversees the latest project, which happens to be a live-in Washington resort and spa, home base for himself on 23 acres of forest.

Taking a look back at builds from the past is always a joy for Pete Nelson and the carpenters of NT&S; Pete and a few crew members gather around the campfire to poke fun at one another about the shenanigans they shared when building in the trees.

A dog-loving couple dream of a tree house that recaptures mountain vistas; Pete and his team build a bulldog bungalow that offers a bounty of outdoor decks and loads of large windows to take in a view once lost.

A tuxedo cat takes playtime too far, pitting Dr. G against a life-threatening foreign body; a barbeque season corn-undrum lands a Golden Retriever in urgent care.

Rocky, a mixed-breed canine suspected of scarfing a purse, deals Dr. G unexpected side dishes; a puppy with a troubled tummy is a head-scratching case from beginning to end.

An old dog develops new tastes that aren't exactly what they seem; when a feline devours a stringy oddity, vet staff are blind to its identity; Ben realizes Dr. G is nearing a major career milestone.

When a Golden Retriever's tastes go off the beaten track Dr. G's skills must be rock-solid; Captain the three-legged cat's appetite proves to be as unique as his form; Dr. G's furry family brings a special inspiration to his work and life.

One feline has an appetite that's shockingly on the money, while another's taste for stringy oddities appears to be insatiable; while Ben is back home visiting family, an exotic bird with questionable peckishness puts Dr. G out of his comfort zone.

A pet owner who is a nurse gets a front-row seat as Dr. G explores a troublesome appetite; a feline at risk for a dangerous blockage means a high-pressure game of cat and mouse.

Dr. G gets tied up as he unravels the cause of Ivan the cat's questionable mood; a fellow veterinarian calls for help when her beloved Poodle's cough points to foreign material in an unusual place.

A tuxedo cat takes playtime too far, pitting Dr. G against a life-threatening foreign body; a barbeque season corn-undrum lands a Golden Retriever in urgent care.

Dr. Dee takes care of her mother while dealing with her busy clinic; emergency surgery on a Yorkie puppy; puppies are rescued from remote villages in the hopes of finding them homes.

Dr. Dee flies to a remote clinic in Healy; tumors found on dog getting spayed; Dr. Dee readies Nugget the Bull to breed; Dr. Terry is surprised while giving six kittens their shots.

One feline has an appetite that's shockingly on the money, while another's taste for stringy oddities appears to be insatiable; while Ben is back home visiting family, an exotic bird with questionable peckishness puts Dr. G out of his comfort zone.

A pet owner who is a nurse gets a front-row seat as Dr. G explores a troublesome appetite; a feline at risk for a dangerous blockage means a high-pressure game of cat and mouse.

Dr. G gets tied up as he unravels the cause of Ivan the cat's questionable mood; a fellow veterinarian calls for help when her beloved Poodle's cough points to foreign material in an unusual place.

A tuxedo cat takes playtime too far, pitting Dr. G against a life-threatening foreign body; a barbeque season corn-undrum lands a Golden Retriever in urgent care.

Dr. Dee takes care of her mother while dealing with her busy clinic; emergency surgery on a Yorkie puppy; puppies are rescued from remote villages in the hopes of finding them homes.

Dr. Dee flies to a remote clinic in Healy; tumors found on dog getting spayed; Dr. Dee readies Nugget the Bull to breed; Dr. Terry is surprised while giving six kittens their shots.

Taking a look back at builds from the past is always a joy for Pete Nelson and the carpenters of NT&S; Pete and a few crew members gather around the campfire to poke fun at one another about the shenanigans they shared when building in the trees.

A dog-loving couple dream of a tree house that recaptures mountain vistas; Pete and his team build a bulldog bungalow that offers a bounty of outdoor decks and loads of large windows to take in a view once lost.

A look at why a herd of wild elephants check into the same hotel every year and what is causing giant bubble rings off the coast of Portland, Maine.

A look at why a seal throws an octopus at a kayaker; why a moth is drinking from the eye of a bird in the Amazon jungle; what surprising creature has been leaping out of the Irish sea.

A look at how a dung beetle standing on its head can roll a ball in a straight line; if egrets ever regret hanging out next to hungry alligators; and what ghostly creature was caught on camera 3000 feet below the ocean's surface.

A look at which animals get the giggles; what would cause the sea lions of San Francisco to mysteriously swim away all at once, manta rays that synchronize swim.

A deer poacher is busted, a baby rattlesnake is rescued, a hummingbird evades capture, and a raccoon is released into the wild; the wardens also respond to flooding conditions and a car accident.

A landowner is spoken to for a second time about illegal hunting; an injured deer is found hiding in a shed; wardens notice a suspicious driver hiding something under his seat.

Warden Eddins assists the local police with an animal cruelty case; a trespassing dispute; relocating a snapping turtle; cracking down on fishermen.

Anglers are out all over Texas; in Houston County, a game warden returns after a life-threatening injury; along the coast, fishermen get caught with too many sharks; a protected turtle gets relocated, and anglers on the Gulf learn how to tag fish.

A hunter is confronted for killing a deer with a gun during bowhunting season; a man is questioned for possessing venomous copperhead snakes; while checking bowhunters at night, a game warden helps find an injured hunter.

It's the opening of deer and oyster season in Texas and Game Wardens find illegal undersized oysters; in East Texas, Game Wardens patrol deer camps; an owl is rescued from a chicken coop and set free.

Deer season is well underway across Texas; in East Texas, Game Wardens find a bobcat a new home and investigate an illegally killed deer; on the coast, the Texas Game Wardens deal with an outstanding warrant.

Investigating the mysterious death of a deer; a seal is stuck in a tidal creek; a young fisherman is caught in a lie; a search for a woman with a head injury.

Newly promoted Sgt. Lucas shows Trainee Frye the ropes during a busy ATV weekend; Hannett attempts to rescue an injured heron and later faces off with a moose; lost hikers turn to Holmes for help as the sun goes down and temperatures drop.

Up north, Sgt. Lucas checks duck hunters; down south, Officer Benvenuti and trainee Crouse question a man suspected of hunting over bait; Sgt. Lucas and Officer Holmes attempt to free a cub stuck inside a trap before its mother returns.

Wardens fight to combat a string of trespassing instances. They fight to maintain order as they encounter hunters with illegal animal kills. Later, Wardens check boaters for licenses, prep for the Yellowstone boat party, prevent raft flips, and more.

Wardens must be cautious as they release a trapped black bear back into the wild; they pull together all their resources to stop illegal hunting in the valley.

A warden is skeptical when a bow hunter without a license claims he's only elk calling. Hunters find out the hard way because they're on private property, and when an endangered grizzly bear is shot, wardens come out in full force.

Wardens must be cautious as they release a trapped black bear back into the wild; they pull together all their resources to stop illegal hunting in the valley.

A warden is skeptical when a bow hunter without a license claims he's only elk calling. Hunters find out the hard way because they're on private property, and when an endangered grizzly bear is shot, wardens come out in full force.

Newly promoted Sgt. Lucas shows Trainee Frye the ropes during a busy ATV weekend; Hannett attempts to rescue an injured heron and later faces off with a moose; lost hikers turn to Holmes for help as the sun goes down and temperatures drop.

Up north, Sgt. Lucas checks duck hunters; down south, Officer Benvenuti and trainee Crouse question a man suspected of hunting over bait; Sgt. Lucas and Officer Holmes attempt to free a cub stuck inside a trap before its mother returns.

Facts and trivia about Dalmatians, Siberian huskies, German shorthaired pointers, Pomeranians and Havanese.

Facts and trivia about English sheepdogs, chow chows, toy fox terriers, Brittany spaniels, and miniature schnauzers.

A new bison calf has a hard time keeping up with his mom; the bird department prepares a group of Von der Decken hornbill chicks for their move to the Minnesota Zoo; keepers at the Central Park Zoo hope the female snow monkeys accept a new male.

Crate training Nikita the Amur tiger in preparation for her move to Washington, D.C., proves challenging; an endangered Chinese alligator shows signs of being pregnant; staff prepare to release rare New England cottontail rabbits into the wild.

The team scours a dangerous Thai rainforest to track down the stunningly colored tokay gecko; it has gravity-defying adhesive abilities that defy logic.

In Mozambique, the team tracks down the deadly devil's flower mantis which is virtually invisible; it resembles a tropical flower and is covered in daggers and hooks.

A successful pet psychic is having trouble communicating with her vicious cat, Lily; Khloe the cat has developed erratic behavior after her owner discovered a colony of feral felines living behind the house.

When Debbie returns home from a trip, she finds her house covered and smelling like cat pee from her boyfriend, Brian's cat Blinkie, who denies the problem;Krisi may have to choose between marriage to her boyfriend Jason and her cat Frankie.

A mother and son travel from Boston with hopes of adopting a dog, but Tia struggles to find a good fit for the family; Lizzy rescues a maggot-covered dog that was found lying on the road and races to the vet, hoping to save it.

Concerned about flooding in Assumption Parish, Tia seeks a solution for how she and the dogs would be able to evacuate quickly; Joe feels a special bond with an injured dog he rescues off the street and takes him under his wing.

Jeremy Wade heads to the Mekong River in Thailand in search of the giant freshwater stingray.

Jeremy fishes in the Alaskan wilderness and searches for a lake monster of native legend.

Jeremy Wade journeys up the Congo River in search of the goliath tiger fish.

Denver's busiest vet returns in a new clinic with more patients than ever before; Dr. Jeff fights to help a dog walk again; Dr. Amy operates on a cat with a strange appetite; the team heads out to a sanctuary to help an injured tiger.

Dr. Jeff operates on a dog rushed to the clinic after a growth on her neck ruptures; a family brings in a rabbit with mysterious growths on its side; the team performs a risky procedure on a pair of rescued miniature donkeys.

An owner drives nine hours to the clinic hoping Dr. Jeff can save her dog's leg; Jeff and his team head to a wildlife sanctuary to treat a pack of wolves; when a kitten with a deformed leg needs treatment, Dr. Baier steps up to the plate.

Two sisters rush their tiny dog to the clinic with a life-threatening brain injury; a dog with a broken jaw perplexes Dr. Jeff; a fearless cat with a broken leg wins the admiration of the clinic staff; the team treats some uncooperative yaks.

A pet owner who is a nurse gets a front-row seat as Dr. G explores a troublesome appetite; a feline at risk for a dangerous blockage means a high-pressure game of cat and mouse.

Dr. G gets tied up as he unravels the cause of Ivan the cat's questionable mood; a fellow veterinarian calls for help when her beloved Poodle's cough points to foreign material in an unusual place.

A Bernese Mountain Dog suspected of scarfing an unmentionable feast is a potential record-breaking challenge for Dr. G; a feline rushed to a clinic after a close encounter with a sewing kit sparks a race against the clock to save a family from loss.

A tuxedo cat takes playtime too far, pitting Dr. G against a life-threatening foreign body; a barbeque season corn-undrum lands a Golden Retriever in urgent care.

Dr. Jeff and Dr. Petra work together as they battle to save the leg of a beloved husky; Dr. Baier has a scare when a routine pig spay becomes complicated; a cat with potentially fatal bladder stones gets rushed intro surgery.

Dr. Jeff must act fast to save a bulldog after a life-threatening accident; when devastating floods hit Louisiana, Dr. Jeff sends vet tech Hector to rescue pets left homeless in the disaster; Dr. Don operates on a cat with a bad habit.

A pet owner who is a nurse gets a front-row seat as Dr. G explores a troublesome appetite; a feline at risk for a dangerous blockage means a high-pressure game of cat and mouse.

Dr. G gets tied up as he unravels the cause of Ivan the cat's questionable mood; a fellow veterinarian calls for help when her beloved Poodle's cough points to foreign material in an unusual place.

A Bernese Mountain Dog suspected of scarfing an unmentionable feast is a potential record-breaking challenge for Dr. G; a feline rushed to a clinic after a close encounter with a sewing kit sparks a race against the clock to save a family from loss.

A tuxedo cat takes playtime too far, pitting Dr. G against a life-threatening foreign body; a barbeque season corn-undrum lands a Golden Retriever in urgent care.

Jeremy fishes in the Alaskan wilderness and searches for a lake monster of native legend.

Jeremy Wade journeys up the Congo River in search of the goliath tiger fish.

Pet pig; hedgehog; pygmy goat; capybara; minidonkey; skunk.

Meet the Kooikerhondje, Tibetan Mastif, Dandie Dinmont Terrier, Leonberger, Affenpin, and the worlds largest and smallest dog meet.

A giraffe named Mashengo journeys from the Indiana Zoo to his new home in the Bronx; keepers hand-raise endangered ducklings and release them at the Central Park Children's Zoo; love is in the air for a pair of cloud rats.

Cardiologists try to determine why the geladas are experiencing a life-threatening heart condition; Nile crocodiles are shifted off exhibit for a maintenance project; the elephant shrews are breeding.

The team search for a nocturnal predator in the jungles of Laos; covered in toxic barbs, the virtually indestructible crocodile newt can regrow its limbs and tail.

The team searches the Nevada desert for the camel spider; this eight-legged terror has two pairs of jaws and is the fastest arachnid on the planet.

Ambreen has been in an abusive relationship for the past 13 years, but her abuser is her cat, Calvin; Josh has two women in his life--his cat Nico and his girlfriend, who recently moved in with them. But Nico has been anything but welcoming.

A man is tired of living in fear of his girlfriend's cat and vows if things don't change he will move out permanently. Meanwhile, a couple is convinced their feline Woody is the root cause behind their deceased cat's death.

M2 leaps into action to save a dog roaming the cane fields before it runs afoul of harvest machinery; Tia and Earl help match veteran adopter Kim with a senior dog; Toney and Emily make every day count for hospice dog Chester.

As the new VRC location nears completion, Tia and the team prep to welcome the public for a volunteer day; an Ohio couple feels a powerful connection with deaf dog Ben; Mariah draws on her passion for motorcycles to honor her beloved pit bull Tater.

Officers safeguard waterfowl, patrol ice fishers and snowmobilers; they also monitor off-road vehicle activity; the Department of Natural Resources relocates a historic lakeside building from an eroding bluff.

Officers patrol archery and firearm deer seasons, monitor ORV use, tag suburban ducks, and investigate a buck shot during a coyote hunt, while hunters donate venison to help those in need. Follow Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

Following Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Kari Huebner leads a daring moose-collaring mission with Nate Leue, while Nick Brunson makes a gut-wrenching call on an injured deer; in the desert, John Anderson responds to a remote car crash, and Ben Turner tracks a poacher off the grid.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Officers patrol waterfowl hunters on state lands, investigate potential DUIs and trespassing during firearm deer season, and come together for a charity ice hockey game to support their community.

Michigan conservation officers patrol state land, ensuring hunting blinds are properly marked and removed at season's end; they discover a blind with multiple violations, sparking an investigation into the hunter's compliance with regulations.

Kari Huebner leads a daring moose-collaring mission with Nate Leue, while Nick Brunson makes a gut-wrenching call on an injured deer; in the desert, John Anderson responds to a remote car crash, and Ben Turner tracks a poacher off the grid.

Set against Nevada's rugged landscapes, Nevada Wild follows the state's dedicated game wardens and wildlife biologists as they protect natural resources, enforce hunting and fishing laws, and respond to high-stakes wildlife emergencies.

Officers patrol waterfowl hunters on state lands, investigate potential DUIs and trespassing during firearm deer season, and come together for a charity ice hockey game to support their community.

Michigan conservation officers patrol state land, ensuring hunting blinds are properly marked and removed at season's end; they discover a blind with multiple violations, sparking an investigation into the hunter's compliance with regulations.

Officers patrol archery and firearm deer seasons, monitor ORV use, tag suburban ducks, and investigate a buck shot during a coyote hunt, while hunters donate venison to help those in need. Follow Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

Following Michigan Conservation Officers as they protect and patrol the most precious natural resources in one of the nation's most remote areas.

Hamsters; guinea pigs; geckos; rabbits; parrots and ferrets.

Meet the Komondor, Irish Water Spaniel, Samoyed, Shiba Inu, Wonder Dog, Greyhound and Rat Terrier.

A team tests the problem-solving skills of lions against those of snow leopards; Willow, a young red panda, is having mysterious foot problems; the bird department awaits the gender reveal of two new adjutant stork chicks.

Iray, a red ruffed lemur, is rushed to the health center when keepers discover a wound on its leg; a new exhibit is built for the Pallas' cats, the original grumpy cats; seven baby turtles join the zoo's colony of an endangered species.

The team scours the Sonoran Desert for North America's mightiest mouse, the carnivorous grasshopper mouse; size-defying bite force and a bone-shaking howl allow this rodent to transform into a vicious scorpion killer at night.

After a harrowing search in a South African cave, the team tracks down the elusive, spine-chilling tailless whip scorpion; when they test its lethal attributes, they quickly discover that this supreme nocturnal predator is a real-life nightmare.

A woman creates a video as a desperate plea for help to find her ferocious feline a new home; a couple has three cats who viciously attack one another while treating the home as their personal litter box.

An expecting couple is hesitant to have their cat Sebastian around because of his unpredictable and violent streak; Jackson is tasked with helping a man tame his wild cat and revisits a heroic cat's small town in Ohio.

Tia adopts a patrol dog out to Matt's former home, Dixon prison; owners of two dogs abandon property and dogs; putting Brandi up for adoption upsets Tania.

Tia races to save the life of a dog that's been shot; a scared and sick puppy running loose near heavy traffic is pursued by Matt and Lizzy; Tia faces an agonizing decision after a home inspection raises red-flags.

Wayde and Brett get the royal treatment from a Chicago company with a demanding project in mind; restaurant owners want a window tank with remote-controlled submarines.

The team installs a racetrack-shaped shark tank for an orthodontist and works on a custom refrigerator tank for an appliance store.

A casino wants a 35-foot-long tank built in three weeks; the team works on a jellyfish tank for a Las Vegas ice lounge; Wayde pulls a prank on Brett.

There's a new arrival for Josie at the Vervet Monkey Foundation, catching up with eight-week-old Hector the hippo, and Alison is on a mission to tag a great white shark. Emily and Annie are called in to help a white rhino with a nasty horn injury.

It's vaccination day at the rhino sanctuary, and Rachel is worried about the orphan hawk, who has an eye infection; on the Eastern Cape, vet Emily is called to help four young sable antelopes who are being bullied by an older dominant male.

Discovering the lives of conservation officers of Montana defending public lands, handling antipoaching sting operations, and more.

Exploring the whitebark pine and it's life giving properties.

Wardens must be cautious as they release a trapped black bear back into the wild; they pull together all their resources to stop illegal hunting in the valley.

Discovering the lives of conservation officers of Montana defending public lands, handling antipoaching sting operations, and more.

Exploring the whitebark pine and it's life giving properties.

Wardens must be cautious as they release a trapped black bear back into the wild; they pull together all their resources to stop illegal hunting in the valley.

The team installs a racetrack-shaped shark tank for an orthodontist and works on a custom refrigerator tank for an appliance store.

A casino wants a 35-foot-long tank built in three weeks; the team works on a jellyfish tank for a Las Vegas ice lounge; Wayde pulls a prank on Brett.

Animals profiled include the wallaby, ant, chicken, stingray, deer and hissing cockroach.

Meeting unusual kinds of dogs, including the gentle Borzoi, which is trained to help war veterans suffering from post-traumatic stress disorders.

Robert takes on the challenging task of relocating Bosco, the most aggressive croc at the zoo; Bindi must investigate Forest the giraffe's bad knee problem; Terri helps Harley the koala find love at the end of a difficult breeding season.

Robert gets in the water with Gloria, a 12-foot reticulated python, to swim alongside her for the first time in the Crocoseum; Bindi welcomes home two orphaned kangaroo joeys; Terri helps release a rescued wedge-tailed eagle back into the wild.

Terri returns to her hometown in Oregon to help Brady, a cougar in need of a vital health check; at the zoo, Robert is on a mission to rescue Oscar, a small bird with a big attitude; Bindi bathes an echidna with bad skin allergies.

Terri helps prepare the zoo's new baby rhino, Carrie, to receive a lifesaving vaccine; Robert is on a rescue mission to save two black swans in very bad shape; Bindi tries to determine if a cranky wombat named Poa might be pregnant.

It's moving day for Acco, the zoo's biggest crocodile; all goes to plan until his mate Cassie goes into hiding; the team races to reunite the bonded pair in their new enclosure; the rescue unit fights to save a flying fox entangled in barbed wire.

Tia decides to hire new parolees, but one parolee may blow his chance at redemption on the first day; shocking news about one of Villalobos' most beloved dogs, Creature, threatens to end his chances of being adopted.

Tia and the twins hit the road after she receives back-to-back calls for help from the South; after helping an army veteran with a new litter of puppies, the team find themselves on a wild chase after an injured dog through Jackson, Miss.

Tia races to save the life of a dog that's been shot; a scared and sick puppy running loose near heavy traffic is pursued by Matt and Lizzy; Tia faces an agonizing decision after a home inspection raises red-flags.

A disabled veteran and his wife visit Villalobos to find a pair of dogs to help with his depression; Marcel and Mariah race to help a puppy in need; a rescued dog has trouble settling in, so Tia reaches out to other shelters for help.

Lizzy and Elise struggle to rescue a dehydrated dog in the blazing heat; an anxious, abandoned dog is moved to a new warehouse for dogs with special needs; Tia and the twins help a friend of the rescue find the perfect match.

Murphy and Demler investigate a suspicious turkey kill while Courtney rescues a scared fawn near a busy road. Meanwhile, Lucas races to save a sick loon.

Lt. Boudreau and Officer Hannett investigate a possible illegal turkey kill site; Officer Bronson responds to a call about a snake in a bed; Officer Demler confronts a suspect about shooting a turkey on private property.

Lt. Boudreau, K-9 Ruby and Officer MacFadzen investigate a hunter suspected of shooting a turkey from the road; Officer McKee searches for a baby owl that fell from its nest; Officer Hannett rushes to lead a carryout when a hiker suffers an injury.

Officers Bronson and Towne get more than they bargained for with a speeding snowmobiler; the K-9 unit performs winter training; Officer MacFadzen patrols an ice drag racing event; Officer Cyrs heads into the woods to investigate a hit and run.

Lt. Boudreau teams up with Trainee Masucci to track down a turkey hunter who may have shot from the road; when an animal release goes south, Officer Hannett lends a hand;Officer Canfield races to catch a trespassing dirt biker.

Lopashanski attempts every trick in the book to wrangle a stubborn moose off of a busy roadway; Officer Canfield plays a game of cat and mouse with a suspected illegal deer hunter; Officer McKee and Demler investigate an illegal turkey kill.

Lt. Boudreau, K-9 Ruby and Officer MacFadzen investigate a hunter suspected of shooting a turkey from the road; Officer McKee searches for a baby owl that fell from its nest; Officer Hannett rushes to lead a carryout when a hiker suffers an injury.

Lt. Boudreau teams up with Trainee Masucci to track down a turkey hunter who may have shot from the road; when an animal release goes south, Officer Hannett lends a hand;Officer Canfield races to catch a trespassing dirt biker.

Lt. Boudreau teams up with Trainee Masucci to track down a turkey hunter who may have shot from the road; when an animal release goes south, Officer Hannett lends a hand;Officer Canfield races to catch a trespassing dirt biker.

Lopashanski attempts every trick in the book to wrangle a stubborn moose off of a busy roadway; Officer Canfield plays a game of cat and mouse with a suspected illegal deer hunter; Officer McKee and Demler investigate an illegal turkey kill.

A disabled veteran and his wife visit Villalobos to find a pair of dogs to help with his depression; Marcel and Mariah race to help a puppy in need; a rescued dog has trouble settling in, so Tia reaches out to other shelters for help.

Lizzy and Elise struggle to rescue a dehydrated dog in the blazing heat; an anxious, abandoned dog is moved to a new warehouse for dogs with special needs; Tia and the twins help a friend of the rescue find the perfect match.

Meet the Turkish Van, Snowshoe, Chartreux, Bengal, Domestic Housecat, Fat Cats, and Balinese.

Maine coon, Egyptian mau, Siamese, Himalayan, Oriental and Turkish angora cats.

Jeremy travels to the Amur River in eastern Russia, where a mammoth predator is allegedly responsible for the disappearances of three fishermen.

Jeremy Wade returns to the Okavango Delta to re-investigate a predatory carnivore that may have mauled over 100 victims of a capsized boat; to discover the truth, Jeremy offers himself up as live bait.

A recent fatal incident in the Alaskan wilderness sends Jeremy on a quest for possible suspects that culminates in a showdown with an unexpected, bizarre water beast.

Jeremy Wade investigates rumors of a twenty-foot lake monster that attacks people; with snakes, freshwater sharks and giant sturgeon unlikely possibilities, the answer as to what it is drives Jeremy crazy.

Jeremy Wade fights through tropical storms and dangerous jungles to search for a Fijian killer that has been part of the local folklore for years, but there may be more than one.

Tia sends Jake and Armando on a rescue mission to Texas after hearing about two pit bulls who were wounded in a run-in with a porcupine; when a second story about a dog on death row comes in, the guys need to kick it into high gear.

Roommates with extreme lifestyles want to adopt a pit bull; Tia rescues an abandoned mastiff.

Tia's son, Kanani, and his fiancée, M2, prepare for their wedding; parolee Jammall finds an abandoned dog and asks Mariah for help rescuing it; a woman and her son visit Villalobos hoping to find a new friend for their family dog.

The family of Mutt, a Villabos employee who recently passed away, meets the dog he chose for them; Tia and M2 go on a wild goose chase near a middle school.

Wanting to give the senior dogs a special place, Lizzy, Tania, and Mariah create a retirement center at one of the warehouses. And, Lizzy rescues a dog that has one of the worst skin conditions she has ever seen.

Wildlife expert Forrest Galante explores the rescue and rehabilitation at Vantara, a world-class sanctuary; discover how the wildlife there are saved from captivity, conflict, neglect, and are given a second chance at life.