Content from Nat Geo Wild

Enter the harsh and unforgiving Kalahari and follow a lion pride attempt to save their threatened bloodline.

A high-tech autopsy on a Nile crocodile unlocks secrets behind its hunting prowess.

Hippos and crocs have lived side by side for millennia, but are they cozy bedfellows or arch-enemies? One is a hefty herbivore, the other is the most successful freshwater predator on the planet, so how do they manage to survive together in the same habitat? They each have a unique arsenal of attributes honed by centuries of evolution; muscle power, bite force and ferocious dentition give them the edge in their environment. But once a year, their peaceful semi-aquatic existence turns into a battle for survival.

It's hard work being the world's biggest dragon on Rinca island. Competition is so fierce, and the global temperature slowly rising

In the far reaches of the North, wolf and bear come head to head. Winter has been long. The melting ice reveal scattered carcasses in the Swamp: a feast worth fighting for. The bears must fatten up before Winter comes again, the wolves must strengthen their pack. The Swamp has been their battleground for decades, who will rule the North?

Big-cat expert Boone Smith tracks pumas in Patagonia, but the tables are turned when a big cat starts to stalk him.

Today is a snow day. Like every day. Young animal cubs in the coldest climate zones on earth go to a tough school. With lots of love and daily lessons, they find their way into (survival) life.

David Attenborough narrates the intimate story of a leopard mother and her two cubs. This very special family must survive in the wilds of Botswana alongside some less-than-friendly neighbours: lions, wild dogs and hyenas. The competition for food is tough, and if they are going to make it they must learn a new skill - they must learn to fish. This is an epic family drama. With them every step of the way is local cameraman Brad Bestelink. Brad's 18-month journey following the lives of these secretive big cats offers a rare glimpse into an otherwise hidden world

A series of shark attacks that happened in the same patch of ocean, the remote islands of the Whitsunday in Australia.

In 2009, the underwater world around the Central Polynesian Sporades in the eastern Pacific was intact. But a few years later, the corals died massively. Now they have recovered.

There is a beach in Costa Rica that challenges what we think we know about big cats. Americas largest cat, the jaguar, is hunting an unusual prey; sea turtles.

Most people in the world who know a domestic cat understand the wild look in their pet's eye. This film looks at those thinly veiled behaviors between domestic cats and their wild cousins and ancestors, specifically to draw those parallels and to explain to 'owners' what they are seeing when they watch their cat. There are scenes of cats leaping, landing, running up trees like leopards and all the behaviors we are used to seeing in domestic cats, but drawn exactly from their wild equivalent

Previous attempts to find the giant squid have largely failed. Armed with state-of-the-art cameras and some new theories, a scientific team encounter some of the most unbelievable scenes nature has to offer and finally shine a light on this elusive creature.

Winter is here. Ready or not, creatures big and small endure the harshest and most unforgiving season on the planet. Some cling to life in these bitter months…while others see opportunity on the ice. In this one-hour special, wildlife around the globe fights tooth and nail to survive the winter season, against a striking frozen backdrop.

In Sierra Leone chimps are struggling. After civil war and Ebola, they are not a priority. The race is on to bring them back from the brink. Tacugama Chimp Sanctuary is doing that. For the chimps the mission is simple. Find your personality, find your place in a troop, and find a way to live. This is an intimate, harrowing and heart-warming story told through the evolving and enchanting lives of individual chimp characters fighting to survive.

Iran's Wild Side offers a rare look into Iran 's wondrous wildlife and nature. This documentary features the marvels of this little-known land, nested in the Middle East . From the hot arid deserts and their shifting sands, to the breath-taking snow-capped mountains and their unique inhabitants, and to the lush greenery of mangroves and their unusual creatures, Iran is a land cloaked in mystery and extremes

The Desert Sea is an Ultra High Definition 2 part series that centers on North America's diverse Sonoran Desert. The first hour explores why the Sonoran is the wettest and most diverse desert in the Americas due to its unique proximity to the Gulf of California and the great Pacific Ocean - a coastal desert next to an extraordinary rich marine environment of sea lions, dolphins and even blue whales. The second hour focuses on the abundant and diverse creatures that have adapted to desert life in this unique environment: from big cats, giant hares and killer insects, to extraordinary reptiles and even a bird that can run at high speeds.

An intimate and powerful experience, looking at some of the planet’s most fearsome animals in their own unique neighborhoods.

It's every pet owner's worst nightmare: you realize your beloved pet has vanished from your home and is out in the world without any food, shelter or love. Now, there's a new team that can help you find your pet faster than those yellow flyers, social media posts or animal psychics can. Follow the tale of the brave trackers and their highly-trained dogs tasked with finding America's lost pets in Nat Geo WILD's new series Trackers.

Our dependence on plastic is choking life on our planet. We explore the worrying impact of the global waste crisis and meet the environmental warriors trying to save our world.

A visual feast showcasing incredible wildlife encounters captured by tourists on safari with their cell phone cameras, bringing extraordinary moments into focus.

American Christian missionary John Chau was murdered when he tried to illegally contact and convert some of the world’s last uncontacted indigenous people. Through exclusive interviews and archival footage of John’s journey, THE MISSION explores themes that strike deep at the heart of religion, colonialism, and anthropology, questioning where we draw the line between faith and fanaticism, exploration and exploitation, imagination and destruction.

In the bitterly cold winter months it is not easy for animals to survive. We travel to the iciest corners of the world to see how the most resilient animals cope.

It could be that we are being closely watched by space aliens. We search for intelligent life through witness accounts of abductions and UFO sightings.

New, streamlined models are being produced in factories, and the old models are also being revived. We are obsessed with cars.

Whales are beautiful and powerful, which rightly puts them in the category of 'most unique animals in the world'. Dive into the world of whales and discover what makes these creatures so fascinating.

From towering skyscrapers to miles of suspension bridges. Architecture continues to push its boundaries. Discover how the world's most impressive structures were built.

It's not easy being the biggest dragon on Rinca Island. For Komodo dragons, every day holds countless dangers. The fight for survival is tough and the heat is hard on the animals.

When your beloved pet is sick, you want your animal to receive the best care. Join the world's most experienced veterinarians.

The most heinous crimes were committed by the Nazis out of deep hatred. We look at their most terrible misdeeds, from inhumane experiments to their weapons and structures

Egyptian culture is a dizzying maze of ancient knowledge and impressive architecture. Egyptologists reveal even more secrets of this ancient country.

The Apollo space program: 12 manned-missions, one impossible goal. With rare archival footage and audio, this remarkable documentary sheds new light on an incredible time in human history.

The shark is considered one of the most dangerous predators for humans. We watch their predatory behavior and listen to stories of people who survived a shark attack.

The International Space Station (ISS) is without doubt the most ambitious orbital project ever built. This giant assemblage covering some 9,700m2 has allowed men and women to prepare for long periods of weightlessness, as a precursor to possible trips to Mars. It has also allowed people from around the world to live and work together, with no fewer than 16 nations having participated in the construction of this steel behemoth weighing 400 tonnes. But how did the engineers and astronauts go about assembling this station in space? How does it operate? What energy source does it use. How do the crew get there? And how do they get home again? What is it like to eat, sleep and even breathe on board? This film takes us inside the International Space Station.

The strongest prey animals in the animal kingdom are ruthless hunters. They have a great hunting instinct and are able to eliminate their victims quickly.