Nat Geo Wild

From the Arctic Islands to the vast snow forests of the Taiga, journey to the very top of our planet to see the world's toughest creatures in their spectacular habitats.

Rock climber Alex Honnold launches a Greenlandic expedition to climb a 4,000-foot sea cliff. The team face an unprecedented 1,500-foot ascent. 7+.

Alex and the team are hit by deadly ice fall as they ascend an unnamed 1,500-foot rock wall. Later, they face snowstorms, crevasses and a whiteout. 7+.

In the final stage of the epic Greenland expedition, Alex and his fellow professional climbers face what could be their most dangerous ascent yet. 7+.

A look at terrifying tales of shark attacks, including that of newlyweds Kristy and Denver, who were surfing with friends when a shark struck. Did they survive.

An aggressive hippo leaves two safari guides fighting for their lives, while another capsizes a couple's boat before ferociously attacking them in the water.

A look at astonishing animal friendships, including a boy who befriends an enormous Cape buffalo and a deer that forms a bond with two people and a cat. 7+.

A look back at the most touching, strange and shocking animal friendships of the series, including a tortoise that struggles to keep up with his hippo pal. 7+.

Look out for these Botswana bullies. Scourges of the Savannah, they target others and their own, bringing terror to the Kalahari. 7+.

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

As Dr Oakley assesses a reindeer herd, the team try to get past a donkey protecting a mini horse, before checking in on some therapy animals.

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The Schroeders rush to the rescue when a car accident leaves three beloved horses injured. At the clinic, Erin freezes off a Shih Poo's old warts. (S4, ep 8) 7+.

Erin operates on a rescued Shar Pei with excess skin around his eyes while Ben puts a not-so-mini horse on a weight loss plan to help his hobbled hooves.

Dr Pol and Charles are off to castrate a pair of testy bulls. At the clinic, Dr Emily takes a look at a drove of pigs that are coughing with high fevers.

Casey throws a big birthday bash for his pet grizzly bear Brutus, before introducing him to some new friends at the Montana Grizzly Encounter sanctuary. 7+.

Casey returns to his wildlife hotspots as spring brings the animals back out. Meanwhile, in Montana, Brutus and the other creatures come out of hibernation. 7+.

Casey travels to Yellowstone National Park where he observes the survival techniques used by the resident grizzlies, from hibernation to preying on elk calves. 7+.

From vast deserts to lush tropical forests and from immense lakes to winding rivers, Africa is a continent of extremes. 7+.

Expect the unexpected on safari, where lions, leopards, hyenas and even terrapins clash in nature's most astonishing encounters. (S1, 1 of.

From a buffalo chase to a lion cub's struggle to survive, witness unforgettable safari drama up close in the wild. (S1, 2 of.

The Schroeders rescue stranded dogs at sea. At the clinic vets treat a mule, cat and gecko and perform an emergency C-section. 7+.

Leaving one hive to start another, these hornets will sacrifice everything to help raise legions of grubs and protect the hive at all costs. 7+.

Finding a partner sounds easy, but not when you're among the oddest animals in Asia. Discover how these quirky critters find love. Suitable for all audiences. (S1, ep 1) 7+.

New & Exclusive. America's winter has a bite. As temperatures plunge, some animals retreat to nests or dens and some migrate, but the strongest tough it out. 7+.

Stunning documentary exploring the diverse life along one of the world's longest rivers, including its hungry wolves, warring eagles and shivering bobcats. (1 of 3) 7+.

Stunning documentary exploring the diverse life along one of the world's longest rivers, including its hungry wolves, warring eagles and shivering bobcats. (2 of 3) 7+.

Living amid the most active volcanoes in the Lower 48, the creatures of the High Cascades are in constant danger of an eruption. (1 of 5) 7+.

It's spring and the Alaska SeaLife Center is teeming with orphaned seal pups. Puffins are about to hatch, and the team brings in an ancient shark.

Witness as some brilliant rescue teams risk all to save seal pups, snowshoe hares, elks and eagles, all while battling extreme Alaskan weather.

From shrimps packing a punch with the force of a bullet to birds with lethal legs, these unlikely killers are some of Africa's most dangerous predators. 12+.

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

Deep in the Costa Rican rainforest, Dr Oakley and the team track a tapir, help a pregnant sloth, release animals back into the wild and treat a Caracara.

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Living amid the most active volcanoes in the Lower 48, the creatures of the High Cascades are in constant danger of an eruption. (1 of 5) 7+.

Keepers try to figure out why a Bactrian camel has been mysteriously gaining weight and a serval cat gets stage fright when she performs in a show. 7+.

From bears crashing picnics to cougars chasing trail runners, the animals that call this place home can be wild.

From the stealthy crocodile to the toxic stonefish, explore how camouflage, patience and precision lets Africa's predators surprise their prey with a killer strike. 7+.

One Pol Over the Cookoo's Nest: There's a chirpy and chipper set of cases for the vets this week as they deal with ornery ungulates, cut colts, knobby knees, and more.

Amsterdam marks 750 years as Central Station faces record crowds, storms and match-day tensions, with staff racing to keep the city moving. (S2, ep 5) 7+.

The docs at Critter Fixer rush to aid a big tortoise with a badly cracked shell and attempt to wrangle a few scrappy miniature cows on the run. 7+.

Join Ronan Donovan on an unprecedented search for the elusive Arctic wolf. But finding them is just the beginning, as he tries to gain acceptance into their pack. 7+ (1 of.

Staff get ready to take in an orphaned baby gorilla. Pregnant giraffe Lulu has keepers on the edge of their seats and flamingo Annyung loses her squawk.

As some pesky giraffes cause a traffic jam, an elderly turtle has a health scare, a hippo seeks acceptance and a lemur celebrates a birthday! U.

Dr Michelle Oakley travels 3,000 miles to investigate a problem at Buffaloland Park. Plus, a miniature horse needs her urgent attention. (S4.

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

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.

The islands between Asia and Australia are the biologically richest on Earth. Discover what makes these ancient islands so wild, weird and wonderful. 7+.

How did the shuttle Columbia tear itself to pieces during re-entry? And how did a concrete high-rise in London become an inferno? (1 of 8) 7+.

You Guessed it, Winter is Coming: Margot and her canine friends continue their pioneering trapping adventure, pushing deeper into the rugged Yukon backcountry.