BBC Earth

Exploring the worst mass extinction the planet has ever seen, when as much as 90% of all species died 252 million years ago; this moment in Earth's history took life to the brink, wreaking havoc and destruction on an unprecedented scale.

Injured wild dog Flint helps care for Storm's largest ever litter of pups; leopard Mutima searches for a home; the lions are challenged by forces beyond their control.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

Brian learns about the oldest planet in the solar system Jupiter, which uses its size to manipulate other planets.

Head out with a team of intrepid scientists on a daring expedition off Western Australia's Pilbara coast; Slither into the heart of danger with Dr. Ann, who gets too close for comfort to one of the nation's most mysterious and lethal serpents.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

Brian learns about the oldest planet in the solar system Jupiter, which uses its size to manipulate other planets.

Steve Backshall leads a team on a mission to make the world's first ascent of a remote mountain in Greenland.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

Brian learns about the oldest planet in the solar system Jupiter, which uses its size to manipulate other planets.

Steve Backshall leads a team on a mission to make the world's first ascent of a remote mountain in Greenland.

The space telescope Hipparcos led to a discovery that sent shockwaves throughout the astronomical community: a star appearing to be older than the universe itself.

Hope gets hurt; an owl gets a nasty welcome back to the wild.

Psychedelic swirls in the Utah wastelands; a bizarre configuration of circles in the Sahara; hidden lines with the help of a drone; a remote polka-dot lake in Canada.

The St. Lawrence River is one that forged North America, allowing ships to traverse the continent; the adventure begins in Canada's first capital city of Kingston and near Canada's second-largest city of Montreal.

In the heart of central Mexico, lies Sierra Gorda, a region that is home to bobcats, pumas and flying squirrels.

Get petrified by cryptic rock structures normally hidden from view; look inside curious dwellings in the Peruvian Andes; visit a sacred monolith in Wyoming's Black Hills; haunt a Turkish stone village; spot an immovable waterfall in Mexico.

The St. Lawrence River is one that forged North America, allowing ships to traverse the continent; the adventure begins in Canada's first capital city of Kingston and near Canada's second-largest city of Montreal.

A bird is in trouble, but is it wildlife? Spring patients are ready to return to the wild.

Nominations for the Earthshot Prize to Fix Our Climate are revealed as Prince William, Sir David Attenborough and Christiana Figueres, who led negotiations for the Paris Agreement on climate change, highlight inspiring solutions.

For her pups to survive, a young meerkat queen must unite her family in the face of rivals, predators and immense dust storms in the harsh beauty of the Madgadikgadi salt pans of Botswana.

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 drought event pushes a struggling elephant family to its limits as their only chance to save their dynasty is to work together and overcome the challenge of a lifetime.

For her pups to survive, a young meerkat queen must unite her family in the face of rivals, predators and immense dust storms in the harsh beauty of the Madgadikgadi salt pans of Botswana.

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 drought event pushes a struggling elephant family to its limits as their only chance to save their dynasty is to work together and overcome the challenge of a lifetime.

Chart the changes that are endangering six of Earth's most fragile ecosystems...and our planet's future. See how scientists and activists are developing pioneering solutions that could save threatened communities and wildlife on the edge of extinction.

Olimba struggles with old age, and the wild dog story takes an unexpected turn; the lions and the hyenas both enjoy a baby boom - but who has the power to rule?

Chart the changes that are endangering six of Earth's most fragile ecosystems...and our planet's future. See how scientists and activists are developing pioneering solutions that could save threatened communities and wildlife on the edge of extinction.

Olimba struggles with old age, and the wild dog story takes an unexpected turn; the lions and the hyenas both enjoy a baby boom - but who has the power to rule?

Emperor penguins cross a dangerous frozen sea to reach their breeding grounds; rockhoppers brave stormy seas and a 300-foot cliff; tropical Humboldt penguins face sea lions and vampire bats as they make their way to their desert nests.

The male penguins hand over their newborns to the returning females.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

An epic journey into the unknown, a realm that feels almost like science fiction.

The rehab is abuzz as Hope's open house approaches; a release at the birthplace of hockey goes offside; a deer doesn't want to depart.

Iceland is the world's largest volcanic island and new ground is born daily.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

The rehab is abuzz as Hope's open house approaches; a release at the birthplace of hockey goes offside; a deer doesn't want to depart.

Iceland is the world's largest volcanic island and new ground is born daily.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

The rehab is abuzz as Hope's open house approaches; a release at the birthplace of hockey goes offside; a deer doesn't want to depart.

Four rival families, leopards, hyena, wild dogs and lions, all try to claim a rich corner of Zambian paradise as their home.

Leopard Mutima's relationship with her mother is at breaking point, and as the balance of power in Nsefu tips towards the lions, the hyenas and wild dogs fight to raise their young.

Seeking a mate, leopard Olimba begins a new chapter, but in her way is her daughter; the hyenas' strength is growing, but a flooded den spells disaster, and the clan become separated.

Four rival families, leopards, hyena, wild dogs and lions, all try to claim a rich corner of Zambian paradise as their home.

Leopard Mutima's relationship with her mother is at breaking point, and as the balance of power in Nsefu tips towards the lions, the hyenas and wild dogs fight to raise their young.

Seeking a mate, leopard Olimba begins a new chapter, but in her way is her daughter; the hyenas' strength is growing, but a flooded den spells disaster, and the clan become separated.

Around 12,000 years ago, as the Ice Age finally thaws, humanity makes a dramatic shift - abandoning nomadic life for permanent settlements.

Levison Wood is in Botswana hoping to follow the world's largest elephant migration for 650 miles on foot along ancient pathways, but he first must overcome dangers in the bush before tracking a large herd of female elephants.

Lev and his guide, Kane, journey across the saltpans to track bull elephants, but their safety is soon jeopardized when they encounter a herd during mating season.

An orphaned baby Triceratops must outwit a deadly Tyrannosaurus rex.

Levison Wood is in Botswana hoping to follow the world's largest elephant migration for 650 miles on foot along ancient pathways, but he first must overcome dangers in the bush before tracking a large herd of female elephants.

Lev and his guide, Kane, journey across the saltpans to track bull elephants, but their safety is soon jeopardized when they encounter a herd during mating season.

An orphaned baby Triceratops must outwit a deadly Tyrannosaurus rex.

In Alaska, the unusually warm weather has resulted in a late freeze that is wreaking havoc.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Coral Reefs are vibrant undersea cities where life has found ways to survive.

In Alaska, the unusually warm weather has resulted in a late freeze that is wreaking havoc.

Hope Swinimer rescues, rehabilitates and releases thousands of animals each year, while struggling to make ends meet; she is driven by her compassion and belief that every animal matters.

Iceland's volcanoes generate one third of earth's land-based lava, but the land was sculpted by ice.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

Hope Swinimer rescues, rehabilitates and releases thousands of animals each year, while struggling to make ends meet; she is driven by her compassion and belief that every animal matters.

Iceland's volcanoes generate one third of earth's land-based lava, but the land was sculpted by ice.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

Hope Swinimer rescues, rehabilitates and releases thousands of animals each year, while struggling to make ends meet; she is driven by her compassion and belief that every animal matters.

Glenn returns to his remote camp after months away. With grizzlies active in the area, he doesn't know what to expect.

Levison Wood is in Botswana hoping to follow the world's largest elephant migration for 650 miles on foot along ancient pathways, but he first must overcome dangers in the bush before tracking a large herd of female elephants.

The big blue is the world's greatest wilderness, far from shore and many kilometers deep.

Glenn returns to his remote camp after months away. With grizzlies active in the area, he doesn't know what to expect.

Levison Wood is in Botswana hoping to follow the world's largest elephant migration for 650 miles on foot along ancient pathways, but he first must overcome dangers in the bush before tracking a large herd of female elephants.

Lev and his guide, Kane, journey across the saltpans to track bull elephants, but their safety is soon jeopardized when they encounter a herd during mating season.

An orphaned baby Triceratops must outwit a deadly Tyrannosaurus rex.

In the middle of the jungle in Borneo, Dr Ann Jones and a team of scientists search high and low for a mammal as big as a dog and covered in scales. One of the world's most trafficked animals: the weird and wonderful pangolin.

Steve heads to Suriname, a country with more forest than anywhere else on Earth; he kayaks upriver in search of some deadly critters.

A fishing crew takes on an adrenaline-filled fishing trip in Peru.

Olimba struggles with old age, and the wild dog story takes an unexpected turn; the lions and the hyenas both enjoy a baby boom - but who has the power to rule?

In the middle of the jungle in Borneo, Dr Ann Jones and a team of scientists search high and low for a mammal as big as a dog and covered in scales. One of the world's most trafficked animals: the weird and wonderful pangolin.

Steve heads to Suriname, a country with more forest than anywhere else on Earth; he kayaks upriver in search of some deadly critters.

A fishing crew takes on an adrenaline-filled fishing trip in Peru.