BBC Earth

Ben Fogle returns to the Arctic circle to revisit old friend, and fellow adventurer, Randi Skaug living on her remote island off Norway's northern coastline.

The third and final leg of Simon's Russian journey takes him from Crimea to the historic Baltic city of St Petersburg.

Adventurer Steve Backshall takes on one of the most notorious and deadly mountain climbs in the world, the north face of the Eiger.

Plants of the seasonal world face constant change. They use use strategy, deception and feats of engineering to survive. Most importantly, they must get their timing right.

The northern island of Hokkaido swings from Siberia-like winters to Mediterranean-like summers. Everything living on Japan's wildest island needs to be extra resilient to survive.

As everyone faces the final reckoning, the Great River Crossing begins. Gnu and Shani's foal are tested by crocodiles. Duma must save his mother. Does Kali find happiness at last?

At a chimpanzee orphanage in Liberia, the team reach a breaking point while caring for 38 rescued baby chimps, and the orphans have their first taste of life in the forest.

A mother puma must battle rivals, tackle prey nearly three times her size and endure the wild mountain weather of Patagonia in her bid to raise four cubs, her biggest litter yet.

In Amboseli, Kenya, an incredibly rare event pushes a struggling elephant family to its limits. Their only chance to save their dynasty is to work together and overcome the challenge of a lifetime.

On Zambia's plains, a cheetah mother must keep her precious cubs safe, preparing them for life without her. They take on dangerous prey, battle hyenas and learn that even tiny neighbours can bite back.

With the emergence of a young rival, a spotted hyena queen struggles to keep her grip on power while also trying to raise a family in Zambia's vast and unforgiving Liuwa Plain grasslands.

Professor Brian Cox explores mankind's place in the universe. He considers the possibility of alien life - could it exist and will humans ever find it?

Professor Brian Cox looks at how we came to understand that we are not at the centre of the universe.

Angela tries out a new treatment that's proven to help memory and concentration. Plus Chris discovers the best exercise we can do for our brains.

Tracing David Attenborough's lifelong passion for birds of paradise, from the forests of New Guinea more than 50 years ago to the desert of Qatar today.

In celebration of his 90th birthday, Sir David Attenborough shares extraordinary highlights of his life and career with broadcaster Kirsty Young.

In 1989, the space telescope Hipparcos focused on a single star. It then made an unbelievable discovery. Known as the Methuselah star, this celestial body appeared to be older than the universe itself.

As winter comes to an end, residents of Alaska seize opportunities for hunting, exploring and preparing for the seasonal shift.

The arrival of spring brings grave danger to Alaskans as the landscape and waterways come roaring back to life.

Ben Fogle returns to the Arctic circle to revisit old friend, and fellow adventurer, Randi Skaug living on her remote island off Norway's northern coastline.

David Attenborough explains why pandas don't give birth to more developed, robust young, and why kiwis produce a single egg that is a quarter of their body mass and almost too big to lay.

A mother puma must battle rivals, tackle prey nearly three times her size and endure the wild mountain weather of Patagonia in her bid to raise four cubs, her biggest litter yet.

In Amboseli, Kenya, an incredibly rare event pushes a struggling elephant family to its limits. Their only chance to save their dynasty is to work together and overcome the challenge of a lifetime.

Behind the scenes of six species that demonstrate in their own unique way that family is power. Features elephants, the steadfast matriarch.

On Zambia's plains, a cheetah mother must keep her precious cubs safe, preparing them for life without her. They take on dangerous prey, battle hyenas and learn that even tiny neighbours can bite back.

With the emergence of a young rival, a spotted hyena queen struggles to keep her grip on power while also trying to raise a family in Zambia's vast and unforgiving Liuwa Plain grasslands.

Professor Brian Cox explores mankind's place in the universe. He considers the possibility of alien life - could it exist and will humans ever find it?

Professor Brian Cox looks at how we came to understand that we are not at the centre of the universe.

As the weather changes across the Arctic, Alaska's inhabitants cope with severe conditions while searching for essential resources.

For Alaskans, utilising the frozen trails to secure resources is a requirement for survival in the dark winter. At the family hunting grounds in Kiwalik, Chip Hailstone follows a trail of wolves.

Jessie runs the race of a lifetime at the Iditarod; Ricko hunts for small game; the Hailstones go on a family rabbit hunt; Sue clears snow from her rooftops.

What is the secret behind expandable bodies, like the anaconda who can swallow prey twice its own body size?

Ben journeys to the Black Mountains, Wales, to live with a family, discover their stunningly designed wild home, and learn of the challenges they face.

Ben Fogle journeys to the Suffolk countryside and a secretive patch of woodland, to spend the week with unique character Will Lord, a true British caveman.

A wild and remote river of extremes, the Yukon is North America's legendary frozen river. In summer, it is a relentless giant, carving its way 3200km across Canada and Alaska.

At a chimpanzee orphanage in Liberia, the team reach a breaking point while caring for 38 rescued baby chimps, and the orphans have their first taste of life in the forest.

Producer Dan Rees leads the team on their longest journey in the Arctic to Russia's most remote region of Chukotka.

As winter comes to an end, residents of Alaska seize opportunities for hunting, exploring and preparing for the seasonal shift.

Gordon Buchanan joins the Pazhetnovs, a pioneering family of biologists, in snowy Russia to rehabilitate six orphaned grizzly cubs back to the wild.

In 1989, the space telescope Hipparcos focused on a single star. It then made an unbelievable discovery. Known as the Methuselah star, this celestial body appeared to be older than the universe itself.

Steve Backshall, Chris Packham and Ella Al-Shamahi visit the Maldives, Iceland and Cambodia, charting the fight to save the planet's most endangered ecosystems.

Spy creatures reveal an ocean full of startling ways of thinking, including the largest brain, smart octopi, diving monkeys, creative masterminds and other intriguing intelligence.

Spy Creatures explore animal emotions, showing the deep feelings we share. With surfing dolphins, kissing manatees and sensitive cuttlefish, it's an amazing, emotional roller coaster.

Spy creatures uncover surprising undersea relationships as sharks befriend fish, whales play with dolphins, and lobsters do the conga in seas where even spider crabs have friends.

Spy creatures show the challenges of the ocean. From a baby whale in danger and marine iguanas battling storms, to a mantis shrimp's knock-out punch, the spies are never far from trouble.

Go behind the scenes and see what it takes to integrate our spy cameras into animal families.

The world of adult entertainment grapples with its own wave of #MeToo. A new generation are using their online platforms to call out alleged predatory behaviour by prominent industry figures.

Ben journeys to the Black Mountains, Wales, to live with a family, discover their stunningly designed wild home, and learn of the challenges they face.

Angela tries out a new treatment that's proven to help memory and concentration. Plus Chris discovers the best exercise we can do for our brains.

A wild and remote river of extremes, the Yukon is North America's legendary frozen river. In summer, it is a relentless giant, carving its way 3200km across Canada and Alaska.

At a chimpanzee orphanage in Liberia, the team reach a breaking point while caring for 38 rescued baby chimps, and the orphans have their first taste of life in the forest.

Tracing David Attenborough's lifelong passion for birds of paradise, from the forests of New Guinea more than 50 years ago to the desert of Qatar today.

Evolutionary biologist Ben Garrod Ben shows what bone is constructed from and how it can support animals that are both tiny (a frog) and massive (the blue whale).

Adventurer Steve Backshall takes on one of the most notorious and deadly mountain climbs in the world, the north face of the Eiger.

Ben Fogle journeys to the USA's Pacific Northwest, to live with a former punk-rocker who has spent more than half her life living, hunting, and sleeping in the wilderness.

Jessie Holmes sets a trapline that he hopes will bring in vital income to support.

Underwater cameraman Ken O'Sullivan travels along the south coast of Ireland, searching for fin whales, discovering that their migration routes have only recently started to be documented.

Ben Garrod discovers how the skeleton has adapted for vertebrates to move on land in many ways and explores the role of the spine in both cheetahs and snakes.

Plants of the seasonal world face constant change. They use use strategy, deception and feats of engineering to survive. Most importantly, they must get their timing right.

The making of The Green Planet featuring Sir David Attenborough.

Ben travels to an unexplored African landscape with a couple who have swapped city life for a vast wilderness with some of the most fearsome animals on earth.

Faced with brittle ice-covered cliffs, blinding blizzards and deep biting cold, Steve finds himself pushed to the very edge of his ability.

Louis investigates a captivating and controversial icon: 'Tiger King' Joe Exotic.

Amidst a global pandemic, Alaskans will face unprecedented challenges during the summer.