Will we soon find evidence of alien life? Scientists are currently in the throes of an unprecedented search for ET - and an answer to this long-pondered question may come sooner than you think.

Professor Brian Cox begins his exploration of the cosmos with a hymn to the great luminous bodies that bring light and warmth to the universe: the stars.

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.

Andy and Kate teach subsistence and survival skills; Cody Allen has ventured into the bush from Oregon to learn how to live off the land.

Witness animal spectacles from high above the Earth; watch a whirling herd of northern nomads; see undersea behemoths show off in the Pacific shallows; track a U.S. porcine stampede; confront top ocean predators on the Florida coast.

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

Andy and Kate teach subsistence and survival skills; Cody Allen has ventured into the bush from Oregon to learn how to live off the land.

A mysterious predator prowls the streets of a giant metropolis.

Take a deep dive into watery enigmas; glide over a sunken Italian city; a unique underwater cemetery in the Florida Keys; a yellow brick road to nowhere in the depths of the North Pacific; puzzling rocky constructions off the coast of Australia.

Tackling the grade 6 rapids and untamed waters of the Buller River on the west coast of New Zealand's South Island, blessed by a Māori elder of the Ngāti Apa ki te Rā Tō.

The jungle, underwater caves and lush everglades of the Yucatan shelter Mexico's largest predator, Morelet's crocodile.

Learning why an important urban center is sinking toward oblivion; soaring over sprawling ruins buried under Saharan sands; learning the modern secret of an ancient fortress; eyeing a ghost town on the edge of the Gobi.

Tackling the grade 6 rapids and untamed waters of the Buller River on the west coast of New Zealand's South Island, blessed by a Māori elder of the Ngāti Apa ki te Rā Tō.

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.

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

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

From forests to undersea prairies, it is the green of the sea that brings life to oceans.

Coasts are the most changeable habitats of the ocean world.

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.

Nature nerd Dr Ann gets hands on as she joins scientists researching some of the world's most elusive and sometimes dangerous animals, all in a bid to uncover their secrets.

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?

The documentation of natural habitats from across the world, including California, the Arctic, the Maldives and the Amazon rainforest, as they change throughout the years.

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.

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

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

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.

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.

A rare owl appears ready for release but everyone wonders if it will fly.

The highest tides in the world are found in the Bay of Fundy on Canada's east coast.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

A rare owl appears ready for release but everyone wonders if it will fly.

The highest tides in the world are found in the Bay of Fundy on Canada's east coast.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

A rare owl appears ready for release but everyone wonders if it will fly.

Sue is locking down camp and heading to Deadhorse to pick up a new eight-wheel all-terrain vehicle.

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.

From forests to undersea prairies, it is the green of the sea that brings life to oceans.

Sue is locking down camp and heading to Deadhorse to pick up a new eight-wheel all-terrain vehicle.

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.

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

Steve Backshall, Chris Packham and Ella Al-Shamahi visit the Maldives, Iceland and Cambodia; Steve Backshall travels to the Maldives, an area facing significant challenges because of climate change.

Prince William, along with members of the Earthshot Prize Council, including Sir David Attenborough and former Japanese astronaut Naoko Yamazaki, uncovers personal stories of people affected by air pollution and of those determined to clean our air.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

Earth's journey into the deep freeze starts with fire over 800 million years ago; Long before the age of the dinosaurs, before there was even animal life, the supercontinent Rodinia breaks up.

Prince William, along with members of the Earthshot Prize Council, including Sir David Attenborough and former Japanese astronaut Naoko Yamazaki, uncovers personal stories of people affected by air pollution and of those determined to clean our air.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

Earth's journey into the deep freeze starts with fire over 800 million years ago; Long before the age of the dinosaurs, before there was even animal life, the supercontinent Rodinia breaks up.

Sue is locking down camp and heading to Deadhorse to pick up a new eight-wheel all-terrain vehicle.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

From forests to undersea prairies, it is the green of the sea that brings life to oceans.

Sue is locking down camp and heading to Deadhorse to pick up a new eight-wheel all-terrain vehicle.

Two tiny orphans struggle to survive; Hope takes a second swing at a release gone wrong.

Along the west coast of Great Britain, the world's longest uninterrupted footpath forges through more than 800 miles of breathtaking scenery; the diverse landscape of the Welsh coast is a geological treasure.

Come across a set of disturbingly familiar stone monoliths in Colombia, then explore a lost city in the Sierra Nevada de Santa Marta; puzzle over an ancient ruin in Corinth, Greece, and explore an old structure on a Maltese island.

Two tiny orphans struggle to survive; Hope takes a second swing at a release gone wrong.

Along the west coast of Great Britain, the world's longest uninterrupted footpath forges through more than 800 miles of breathtaking scenery; the diverse landscape of the Welsh coast is a geological treasure.

Come across a set of disturbingly familiar stone monoliths in Colombia, then explore a lost city in the Sierra Nevada de Santa Marta; puzzle over an ancient ruin in Corinth, Greece, and explore an old structure on a Maltese island.

Two tiny orphans struggle to survive; Hope takes a second swing at a release gone wrong.

Sue begins the 85-mile journey through the Alaskan tundra on her new all-terrain vehicle, back to her home in Kavik.

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

Coasts are the most changeable habitats of the ocean world.

Sue begins the 85-mile journey through the Alaskan tundra on her new all-terrain vehicle, back to her home in Kavik.

Prince William, along with members of the Earthshot Prize Council, including Sir David Attenborough and former Japanese astronaut Naoko Yamazaki, uncovers personal stories of people affected by air pollution and of those determined to clean our air.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

Earth's journey into the deep freeze starts with fire over 800 million years ago; Long before the age of the dinosaurs, before there was even animal life, the supercontinent Rodinia breaks up.

Alaskans are forced to embrace their inner warrior as winter deepens.

The extraordinary story of how the human species, Homo sapiens, first emerged, where the discoveries of recent years are revolutionising the understanding of humanity's origin story.

Steve Backshall, Chris Packham and Ella Al-Shamahi visit the Maldives, Iceland and Cambodia; Steve Backshall travels to the Maldives, an area facing significant challenges because of climate change.

Alaskans are forced to embrace their inner warrior as winter deepens.

The extraordinary story of how the human species, Homo sapiens, first emerged, where the discoveries of recent years are revolutionising the understanding of humanity's origin story.

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

Sue begins the 85-mile journey through the Alaskan tundra on her new all-terrain vehicle, back to her home in Kavik.

Come across a set of disturbingly familiar stone monoliths in Colombia, then explore a lost city in the Sierra Nevada de Santa Marta; puzzle over an ancient ruin in Corinth, Greece, and explore an old structure on a Maltese island.

Coasts are the most changeable habitats of the ocean world.

Sue begins the 85-mile journey through the Alaskan tundra on her new all-terrain vehicle, back to her home in Kavik.

A most unusual fawn arrives on Hope's doorstep; a graveyard is the spooky setting for an unlikely reunion.

Ireland is small but epic in wonder; surrounded by the Atlantic Ocean, from the Cliffs of Moher to the extraordinary Giant's Causeway, this land has been shaped and reshaped by both the power of water and violent geological forces.

Unlock an abandoned site on a remote Antarctic isle and check out mysterious shapes in the Finnish snow; puzzle over an inexplicable monolith in the far reaches of Norway, then get shocked by a blood-red frozen waterfall at the bottom of the world.

A most unusual fawn arrives on Hope's doorstep; a graveyard is the spooky setting for an unlikely reunion.

Ireland is small but epic in wonder; surrounded by the Atlantic Ocean, from the Cliffs of Moher to the extraordinary Giant's Causeway, this land has been shaped and reshaped by both the power of water and violent geological forces.

Unlock an abandoned site on a remote Antarctic isle and check out mysterious shapes in the Finnish snow; puzzle over an inexplicable monolith in the far reaches of Norway, then get shocked by a blood-red frozen waterfall at the bottom of the world.

A most unusual fawn arrives on Hope's doorstep; a graveyard is the spooky setting for an unlikely reunion.

Chip is planning to go caribou hunting with his son Jon, but Jon is late and the family becomes concerned.

Levison travels into east Greenland's vast Arctic wilderness in search of elusive polar bears; he learns about the lives of these apex predators and their environment.

Pioneers strive to protect the ocean from the effects of human activity.

Chip is planning to go caribou hunting with his son Jon, but Jon is late and the family becomes concerned.

Steve Backshall, Chris Packham and Ella Al-Shamahi visit the Maldives, Iceland and Cambodia; Steve Backshall travels to the Maldives, an area facing significant challenges because of climate change.

Alaskans are forced to embrace their inner warrior as winter deepens.

The extraordinary story of how the human species, Homo sapiens, first emerged, where the discoveries of recent years are revolutionising the understanding of humanity's origin story.

Focusing on faraway landscapes that are bursting with fire and ice; Professor Cox goes on a journey across the solar system for a look at volcanic eruptions so vast they reach into space; learning why these violent explosions hold the keys to life.

Hunting for evidence of life beyond Earth; a look through sensitive telescopes; the detective work of scientists in the search for possible alien populations.

Tutankhamun's tomb was discovered in November 1922; since then, scientists and archaeologists have been puzzled by an iron dagger that was tucked in among the linen folds of the mummy.

Focusing on faraway landscapes that are bursting with fire and ice; Professor Cox goes on a journey across the solar system for a look at volcanic eruptions so vast they reach into space; learning why these violent explosions hold the keys to life.

Hunting for evidence of life beyond Earth; a look through sensitive telescopes; the detective work of scientists in the search for possible alien populations.

Tutankhamun's tomb was discovered in November 1922; since then, scientists and archaeologists have been puzzled by an iron dagger that was tucked in among the linen folds of the mummy.

Chip is planning to go caribou hunting with his son Jon, but Jon is late and the family becomes concerned.

Levison travels into east Greenland's vast Arctic wilderness in search of elusive polar bears; he learns about the lives of these apex predators and their environment.

Pioneers strive to protect the ocean from the effects of human activity.

Chip is planning to go caribou hunting with his son Jon, but Jon is late and the family becomes concerned.

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.

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.

Navigating the historic Potomac River from West Virginia to Chesapeake Bay, passing through Washington, D.C. and the national monuments and ending at George Washington's Mount Vernon estate.

The highest tides in the world are found in the Bay of Fundy on Canada's east coast.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

Navigating the historic Potomac River from West Virginia to Chesapeake Bay, passing through Washington, D.C. and the national monuments and ending at George Washington's Mount Vernon estate.

Levison travels into east Greenland's vast Arctic wilderness in search of elusive polar bears; he learns about the lives of these apex predators and their environment.

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

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.

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.

Earth's journey into the deep freeze starts with fire over 800 million years ago; Long before the age of the dinosaurs, before there was even animal life, the supercontinent Rodinia breaks up.

Return to Brazil's Pantanal wetlands to collar jaguars, then ride into Cambodia's Cardamom Mountains to release critically endangered crocodiles. Later, see how Kenyan farmers are learning to peacefully coexist with drought-afflicted elephants.

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

Brian learns how Saturn began its life as a strange planet of rock and ice, born outside the snow line, with an abundance of building materials.

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.

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

Brian learns how Saturn began its life as a strange planet of rock and ice, born outside the snow line, with an abundance of building materials.

The naturalist visits uncharted territory in the Guiana Shield, finding wildlife that have never encountered humans.

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

Brian learns how Saturn began its life as a strange planet of rock and ice, born outside the snow line, with an abundance of building materials.

The naturalist visits uncharted territory in the Guiana Shield, finding wildlife that have never encountered humans.

Tutankhamun's tomb was discovered in November 1922; since then, scientists and archaeologists have been puzzled by an iron dagger that was tucked in among the linen folds of the mummy.

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.

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.

A journey down one of the wild rivers in the world, the Yukon; the unusual trip starts in an aircraft piloted by a painter and the odyssey ends with a visit to a graveyard of disintegrating rear-wheel steamers.

Along the west coast of Great Britain, the world's longest uninterrupted footpath forges through more than 800 miles of breathtaking scenery; the diverse landscape of the Welsh coast is a geological treasure.

Come across a set of disturbingly familiar stone monoliths in Colombia, then explore a lost city in the Sierra Nevada de Santa Marta; puzzle over an ancient ruin in Corinth, Greece, and explore an old structure on a Maltese island.

A journey down one of the wild rivers in the world, the Yukon; the unusual trip starts in an aircraft piloted by a painter and the odyssey ends with a visit to a graveyard of disintegrating rear-wheel steamers.

A most unusual fawn arrives on Hope's doorstep; a graveyard is the spooky setting for an unlikely reunion.

Prince William, along with members of the Earthshot Prize Council, including Sir David Attenborough and former Japanese astronaut Naoko Yamazaki, uncovers personal stories of people affected by air pollution and of those determined to clean our air.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

Earth's journey into the deep freeze starts with fire over 800 million years ago; Long before the age of the dinosaurs, before there was even animal life, the supercontinent Rodinia breaks up.

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.

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.

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?

Meet the people that made filming Kingdom possible and uncover the extraordinary acts of conservationists and anti-poaching teams protecting South Luangwa and all its inhabitants.

Return to Brazil's Pantanal wetlands to collar jaguars, then ride into Cambodia's Cardamom Mountains to release critically endangered crocodiles. Later, see how Kenyan farmers are learning to peacefully coexist with drought-afflicted elephants.

Meet the people that made filming Kingdom possible and uncover the extraordinary acts of conservationists and anti-poaching teams protecting South Luangwa and all its inhabitants.

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

From forests to undersea prairies, it is the green of the sea that brings life to oceans.

Coasts are the most changeable habitats of the ocean world.

Pioneers strive to protect the ocean from the effects of human activity.

Two members of Hope's team travel to England to discover new techniques and make allies on the front lines of animal rescue.

From the icy peaks of age-old mountain glaciers to the fog-shrouded canopies of Canada's only rainforest, it's the wettest place in North America.

Puzzle over an out-of-place relic from World War II and get a bird's-eye view of stone circles in Norway; examine mysterious, ancient mounds on the banks of the Mississippi and uncover the dark history of a medieval English village.

Two members of Hope's team travel to England to discover new techniques and make allies on the front lines of animal rescue.

From the icy peaks of age-old mountain glaciers to the fog-shrouded canopies of Canada's only rainforest, it's the wettest place in North America.

Puzzle over an out-of-place relic from World War II and get a bird's-eye view of stone circles in Norway; examine mysterious, ancient mounds on the banks of the Mississippi and uncover the dark history of a medieval English village.

Two members of Hope's team travel to England to discover new techniques and make allies on the front lines of animal rescue.

A snowstorm threatens Sue's camp; Chip and Agnes prepare to leave for their annual hunting trip.

Focusing on faraway landscapes that are bursting with fire and ice; Professor Cox goes on a journey across the solar system for a look at volcanic eruptions so vast they reach into space; learning why these violent explosions hold the keys to life.

With food in abundance it's a time of plenty in the Serengeti; a series of unexpected events turns families against each other and stretches relationships to breaking point.

A snowstorm threatens Sue's camp; Chip and Agnes prepare to leave for their annual hunting trip.

Meet the people that made filming Kingdom possible and uncover the extraordinary acts of conservationists and anti-poaching teams protecting South Luangwa and all its inhabitants.

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.

The extraordinary story of how the human species, Homo sapiens, first emerged, where the discoveries of recent years are revolutionising the understanding of humanity's origin story.