NatGeoWild HD

Margot takes another crack at backcountry bridge building, but this time she's determined to use the Yukon's harsh conditions to her advantage.

A fascinating and frightening look at the world's most dangerous creatures.

Snakecatchers Simon and Siouxsie race to the rescue when a huge black mamba is found in a child's bed. Later, a deadly spitting cobra turns on Siouxsie.

After the emergency farm calls and clinic visits for the week are complete, the Pols kick off their Fourth of July celebrations with a parade and a barbecue.

Dr Oakley meets a wolverine with a growing lump on its side and provides comfort to its worried owner.

Nalu and Chris Apassingok travel inland in search of reindeer, while Tig and Evan Strassburg embark on a traditional bear denning expedition. 16+.

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Blinding blizzards, sudden floods and boiling sand dunes make survival a daily battle for the Rockies' mountain lions, black bears, porcupines and pronghorn. (4/5) 7+.

An orphaned 600-pound manatee is ready to join her cousins in the wild. Meanwhile, a polar bear becomes the zoo's newest resident. (S2, ep 12) 7+.

From a lion invading a tent to a testosterone-fuelled elephant charging down a truck, it's no wonder these clips go viral. (S1, ep 4) 7+.

Safety comes in numbers when you're surrounded by Africa's deadliest. But when aggression turns inwards, whole families go to war. 7+.

There's trauma and drama this week as the clinic staff see a little of everything. Plus, Dr Emily has a very special case she refuses to give up on.

Luxury train the Ghan and its 3,000 kilometres of track need constant and skilled maintenance as they traverse the Australian outback. 7+.

Cameras follow Dr Jane Goodall as she travels over 300 days a year, using her wisdom and humour to spread a message of hope that every individual has the potential to create lasting change.

Staff throw a leaving party for polar bears Neva and Amelia Gray. Kangaroo Brie hops to the dentist and an unlikely bond grows between a takin and a camel. 7+.

A pregnant okapi gives birth, a raven takes to the stage and a new resident arrives at Animal Kingdom's female mandrill retirement home. U.

Dr Oakley ensnares a wolverine. An arthritic jaguar gets help getting back on his feet and a cow's maternal instincts put Dr Oakley in a tight spot.

BAFTA-nominated documentary painting an intimate portrait of chimpanzee expert Jane Goodall - a trailblazer who defied the odds to become one of the world's most admired conservationists 7+.

Sierra Leone's chimps are struggling and the race is on to bring them back from the brink. A heartwarming look at life at the country's Tacugama Chimp Sanctuary. Features Dr Jane Goodall 7+.

Apollo 13, MGM Grand, Genoa Bridge: Why did Apollo 13 explode 200,000 miles from Earth? And what caused the devastating fire that swept through the MGM Grand in Las Vegas? 7+. (4 of.

Margot, caught off guard by an unplanned litter of puppies, prepares to leave her Yukon trapline early. Billy embarks on a backwoods salvage mission.

Warring animal clans battle for survival in a remote region of Africa. The winners are rewarded with the richest hunting grounds in the kingdom.

Simon and Siouxsie find their lives on the line when they go out to a vicious snake that's eaten two kittens. An injured spitting cobra needs urgent treatment.

Dr Brenda and newcomer Dr Sandra struggle to help a stubborn pig give birth on a brutally hot day. 12+.

Dr Oakley hatches a plan to move two baby musk oxen to a new home. A puppy develops a mysterious illness.

Tig Strassburg and his daughter Hazel battle the elements in search of bull moose, while Jody Potts-Joseph follows the returning caribou. 7+.

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Elephant seals duel for control of a beach on California's western edge, where bus-sized humpback whales halt their migration to snack on swarms of anchovies. 7+ (5 of.

Staff have their hands full with a koala who is mysteriously losing weight and a beloved lemur named King Julian who gives his keepers a scare. (S2, ep 13) 7+.

From bears taking dips in hot tubs to raccoons raiding kitchens and gators on our doorsteps, animals are getting bolder. (S1, ep 5) 7+.

In Africa, a deadly game unfolds as crocodiles and heat-detecting pythons hunt unsuspecting impala. 7+.

May the Horse be with You: It's another whirlwind weekend as Dr Pol, Dr Brenda and Dr Emily encounter everything from constipated cats to gassy horses. Plus, a surprise proposal.

Witness a triumph of engineering - the Bergen line - built to overcome extraordinary natural obstacles, from fjords to freezing conditions. 7+.

Documentary exploring the secret lives of squirrels. Having invaded the cities, these bushy-tailed critters now live side by side with us. But how much do we know about them? 7+.

Called the Queen of Ranthambore, fearless Machli is one of the wild's longest surviving tigers. But as her offspring challenge her for her territory, her reign could be at its end. 7+.

The keepers need to catcha a Muntjac deer to discover why he's suffering from mysterious seizures. Meanwhile, a skunk sees a heart specialist. 7+.

A gorilla receives a pioneering treatment, a rhino gets a fitness tracker, an antelope's weight loss is investigated and a tortoise has a party. 7+.

Dr Oakley goes to the rescue of a newborn reindeer with a serious injury. An unexpected guest threatens to scupper her plan as she tries to collar a black bear.

At the North Carolina Zoo, a gorilla has emergency surgery, vets examine a deadly rattlesnake and zoo keepers try to take blood from a lion.

The Maasai Mara, a vital savannah ecosystem, thrives year-round as resident wildlife welcomes newborns after the great wildebeest migration. (S1, ep 1) 7+.

The Maasai Mara, a vital savannah ecosystem, thrives year-round as resident wildlife welcomes newborns after the great wildebeest migration.

The Champlain Towers Condominium collapse in Surfside. The Kursk submarine disaster sinking in the Barents Sea. The Kings Cross train station fire. 7+ (5 of.

Warmer weather brings fresh tests as the homesteaders tackle summer hunting, major projects and a race to get a boat running.

She haunts the trees and hills in the heart of the realm. She is solitary, silent and virtually invisible. Saba the leopard is a killer without rival.

It's Simon and Siouxsie to the rescue when a black mamba slithers into a TV, a spitting cobra chases a nun and a baby python gets trapped in the air con. (S4, ep 7) 7+.

With Charles manning the grill, family and friends gather at the Pols for some brats, potato salad and fireworks. 12+.

Dr Oakley treats a reindeer that has become dangerously thin and examines a beloved dog with an injured hip.

Joel Jacko builds a bridge across open water, while Jody Potts-Joseph trains her young dog team on the frozen Yukon River. 12+.

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An enchanting look at the planet's rarely-seen creatures as they contend with the volatile waters of the world's largest river systems. 7+ (1 of.

A look at nature's predators, as grizzly bears fight wolves and trout run deadly gauntlets of river otters and osprey. 7+ (2 of.

When seasonal flooding gives way to the dry season, stealthy jaguars prowl, army ants swarm and tarantulas bring down rodent prey. 7+ (3 of.

It might be Holiday Season, but from a collapsed horse with a brain injury to a potbelly pig that missed her flu shot, it's still all hands on deck.

From a grumpy cat that gets a taste of his own medicine, to some tense after-hours emergencies, there is truly no rest for these cold and weary vets.

From orcas on the hunt to foxes patrolling the beaches - Argentina's Atlantic coastline is as dynamic as it is dangerous. (S1, ep 1) 7+.

From vultures to pumas, Argentina's highlands are home to some of the most rugged creatures on the planet. (S1, ep 2) 7+.

Bjorn gets more than he bargained for when a call to a truck leads to a double road rescue. Thord struggles to keep the roads open as the snow comes down. 7+.

Bjorn battles heavy snowfall as he deals with frozen fuel tanks and troublesome reindeer. In the south, a truck loses its axle on the icy hillside. 7+.

Bjørn responds to a terrible tragedy on the road. Ove and his crew race against the clock to get a fish truck back on its way before its load spoils. 7+.

It's hard work being the world's biggest lizard on Rinca island, as shrinking hunting grounds and an ever-warming environment threaten his survival across every hour of the day.

Panda cubs learn survival skills, expectant mothers await new arrivals and future wild pandas prepare for life beyond the reserve. 7+ (1 of.

Panda cubs tackle new challenges, newborns flourish and future wild pandas adapt to mountain life as others prepare for new homes. 7+ (2 of.

At China's panda centre, playful cubs learn vital life skills as conservationists prepare the next generation for the wild. 7+.

Iconic creatures thrive in the remote inland habitats of the Mediterranean - but for all species, raising the next generation is the ultimate goal. 7+ (1 of.

A wealth of wildlife, including some of the world's most remarkable survivors, call the serene waters along the Mediterranean coastline home. 7+ (2 of.

Cage diving is a popular way to see sharks, but they've been known to ram, bite and even get behind the bars. What keeps drawing these sharks in? 16+.

Changes in shark behaviours are driving scientists to explore whether they are coming closer to shore to hunt. Will sharks one day hunt on land? 16+.

In Africa, a deadly game unfolds as crocodiles and heat-detecting pythons hunt unsuspecting impala. 7+.

In Africa, water sources turn into battlegrounds as territorial hippos fiercely defend shrinking pools against intruders.

The team treat a bull's limp, a cat's oozing lump, a musk ox's walking difficulties and a horse whose strong-willed filly is causing trouble. (S11, ep 17) 7+.

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May the Horse Be With You: A tiny Silky Terrier is brought to the clinic with three babies stuck inside and a very pregnant cow is down and can't get up. (S4, ep 1) 7+.

Follow veterinarians Ben and Erin Schroeder as they race to save animals big and small across rural Nebraska while juggling the demands of family life.

Dr Pol springs into action at an Amish farm to perform emergency surgery. Meanwhile, Dr Brenda helps a heifer that's having a difficult labour.

Dr Brenda treats a reindeer in all types of pain. Plus, Dr Emily has one of her most impressive and difficult birthing cases to date.

When three people are killed in the waters around resorts in the Red Sea in less than a year, scientists launch a pursuit to determine whether or not this is part of a growing trend.

Discover the incredible hunting techniques that enable Valdez Bay's killer whales to dominate their environment, as they prepare to launch an assault on the region's elephant seals. 7+.

Bull sharks are invading. They can currently be found in every ocean and they are busy taking over brackish waters and rivers - so the more we learn about them now, the better. 7+.

Wild animals engage in some of the fiercest battles and encounters, providing an unforgettable sight and experience for safari visitors. (S1, 3 of.

From charging elephants to battling predators, witness the dramatic encounters and surprising moments that unfold on safari. (S1, 4 of.

Tensions rise at Cedar County Vets: a blocked cat, a St. Bernard with a painful tongue infection and a cow facing deadly bloat - every moment matters.

Ben and Erin race to assist a dog with a strange itch, help a dog with severe lethargy, and treat a puppy with a mysterious condition. 7+.

Penguin Planet: From Antarctica's icy wilderness to Africa's golden shores, penguins brave predators and extremes to raise the next generation.

Familiar species and behaviours take on new drama, with revelations that reaffirm why big cats remain nature's most formidable predators. 7+.

An enchanting look at the planet's rarely-seen creatures as they contend with the volatile waters of the world's largest river systems. 7+ (1 of.

A look at nature's predators, as grizzly bears fight wolves and trout run deadly gauntlets of river otters and osprey. 7+ (2 of.

When seasonal flooding gives way to the dry season, stealthy jaguars prowl, army ants swarm and tarantulas bring down rodent prey. 7+ (3 of.