BBC Earth

Nick Jonas joins Bear for a snowy mountain adventure in the Sierra Nevada during blizzard conditions. The guys rappel down a sheer cliff, eat a frozen bird and swim across a freezing lake.

In the final episode, Sue rounds off this trip of a lifetime by heading even further off the beaten track and visiting amazing communities living in the extreme wilderness.

Even the mightiest oak must start life as a tiny acorn. We explore the secret lives of young trees, discovering how they magically transform from minute seeds into mature adults.

Steve Backshall goes searching for Patagonia's perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.

Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.

Michael Palin explores Caracas's stark wealth divide and political crisis before heading to the Amazon to see Angel Falls and uncover the impact of illegal gold mining.

In the final episode, Sue rounds off this trip of a lifetime by heading even further off the beaten track and visiting amazing communities living in the extreme wilderness.

Nick Jonas joins Bear for a snowy mountain adventure in the Sierra Nevada during blizzard conditions. The guys rappel down a sheer cliff, eat a frozen bird and swim across a freezing lake.

Steve Backshall goes searching for Patagonia's perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.

Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.

Michael Palin explores Caracas's stark wealth divide and political crisis before heading to the Amazon to see Angel Falls and uncover the impact of illegal gold mining.

In the final episode, Sue rounds off this trip of a lifetime by heading even further off the beaten track and visiting amazing communities living in the extreme wilderness.

Feel the burn at a state-of-the-art gym that used to be a psychiatric hospital and in a climbing complex that once was a sugar refinery.

Great mountain ranges may provide some spectacular landscapes, but they are difficult habitats to live in. This film offers an intimate look at the secretive lives of mountain animals.

Steve Backshall goes searching for Patagonia's perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.

In the final episode, Sue rounds off this trip of a lifetime by heading even further off the beaten track and visiting amazing communities living in the extreme wilderness.

Michael Palin explores Caracas's stark wealth divide and political crisis before heading to the Amazon to see Angel Falls and uncover the impact of illegal gold mining.

Nick Jonas joins Bear for a snowy mountain adventure in the Sierra Nevada during blizzard conditions. The guys rappel down a sheer cliff, eat a frozen bird and swim across a freezing lake.

Steve Backshall goes searching for Patagonia's perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.

Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.

Feel the burn at a state-of-the-art gym that used to be a psychiatric hospital and in a climbing complex that once was a sugar refinery.

Marshawn Lynch joins Bear on the French island of Corsica, where they chase a wild hog, navigate cliffs and encounter the French Foreign Legion.

In the jungles of north west India, there lives a remarkable wild tiger family. Now, using 50 years of footage, the story of their matriarchal clan is pieced together.

The Simien Mountains is an exotic and dramatic landscape set in the northern corner of Ethiopia. Breath-taking views abound in this natural landscape inhabited by unique and endangered wildlife.

In an unruly world our ancient powers must lead their people, create ways to govern and keep rebellion at bay. Who will find the right way to rule?

Marshawn Lynch joins Bear on the French island of Corsica, where they chase a wild hog, navigate cliffs and encounter the French Foreign Legion.

In the jungles of north west India, there lives a remarkable wild tiger family. Now, using 50 years of footage, the story of their matriarchal clan is pieced together.

In an unruly world our ancient powers must lead their people, create ways to govern and keep rebellion at bay. Who will find the right way to rule?

Marshawn Lynch joins Bear on the French island of Corsica, where they chase a wild hog, navigate cliffs and encounter the French Foreign Legion.

In the jungles of north west India, there lives a remarkable wild tiger family. Now, using 50 years of footage, the story of their matriarchal clan is pieced together.

Michael Palin explores Caracas's stark wealth divide and political crisis before heading to the Amazon to see Angel Falls and uncover the impact of illegal gold mining.

The Simien Mountains is an exotic and dramatic landscape set in the northern corner of Ethiopia. Breath-taking views abound in this natural landscape inhabited by unique and endangered wildlife.

Steve Backshall goes searching for Patagonia's perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.

Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.

In the jungles of north west India, there lives a remarkable wild tiger family. Now, using 50 years of footage, the story of their matriarchal clan is pieced together.

Marshawn Lynch joins Bear on the French island of Corsica, where they chase a wild hog, navigate cliffs and encounter the French Foreign Legion.

Feel the burn at a state-of-the-art gym that used to be a psychiatric hospital and in a climbing complex that once was a sugar refinery.

Korean star Song Ji-hyo will undertake the greatest challenge of her life: free diving with the legendary haenyeo female underwater sea fishers, who she feels a special connection to.

Steve Backshall goes searching for Patagonia's perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.

The Simien Mountains is an exotic and dramatic landscape set in the northern corner of Ethiopia. Breath-taking views abound in this natural landscape inhabited by unique and endangered wildlife.

Jungles offer mysterious worlds with surprising animal characters - follow some of them in the forests of Madagascar as they struggle to survive in this competitive habitat.

In the jungles of north west India, there lives a remarkable wild tiger family. Now, using 50 years of footage, the story of their matriarchal clan is pieced together.

Korean star Song Ji-hyo will undertake the greatest challenge of her life: free diving with the legendary haenyeo female underwater sea fishers, who she feels a special connection to.

Feel the burn at a state-of-the-art gym that used to be a psychiatric hospital and in a climbing complex that once was a sugar refinery.

Marshawn Lynch joins Bear on the French island of Corsica, where they chase a wild hog, navigate cliffs and encounter the French Foreign Legion.

Steve Backshall goes searching for Patagonia's perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.

Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.

The Simien Mountains is an exotic and dramatic landscape set in the northern corner of Ethiopia. Breath-taking views abound in this natural landscape inhabited by unique and endangered wildlife.

Lindsey Vonn joins Bear on the French island of Corsica, where they rappel down a rock wall, use a spear gun, swim and dine on sea urchins.

From space, Earth's surface is covered in wonderful shapes. Wombats dig burrows across the Australian outback and elephants in in the Congo clear an opening in the forest.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

Reza is in Saudi Arabia to reveal the secrets of a hidden frontier on the brink of historic change.

Lindsey Vonn joins Bear on the French island of Corsica, where they rappel down a rock wall, use a spear gun, swim and dine on sea urchins.

From space, Earth's surface is covered in wonderful shapes. Wombats dig burrows across the Australian outback and elephants in in the Congo clear an opening in the forest.

Reza is in Saudi Arabia to reveal the secrets of a hidden frontier on the brink of historic change.

Lindsey Vonn joins Bear on the French island of Corsica, where they rappel down a rock wall, use a spear gun, swim and dine on sea urchins.

From space, Earth's surface is covered in wonderful shapes. Wombats dig burrows across the Australian outback and elephants in in the Congo clear an opening in the forest.

The Simien Mountains is an exotic and dramatic landscape set in the northern corner of Ethiopia. Breath-taking views abound in this natural landscape inhabited by unique and endangered wildlife.

Reza is in Saudi Arabia to reveal the secrets of a hidden frontier on the brink of historic change.

Michael Palin explores Caracas's stark wealth divide and political crisis before heading to the Amazon to see Angel Falls and uncover the impact of illegal gold mining.

Feel the burn at a state-of-the-art gym that used to be a psychiatric hospital and in a climbing complex that once was a sugar refinery.

Michael Palin explores Caracas's stark wealth divide and political crisis before heading to the Amazon to see Angel Falls and uncover the impact of illegal gold mining.

From space, Earth's surface is covered in wonderful shapes. Wombats dig burrows across the Australian outback and elephants in in the Congo clear an opening in the forest.

Feel the burn at a state-of-the-art gym that used to be a psychiatric hospital and in a climbing complex that once was a sugar refinery.

In the final episode, Sue rounds off this trip of a lifetime by heading even further off the beaten track and visiting amazing communities living in the extreme wilderness.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

Courteney Cox joins Bear in Ireland, where they climb jagged peaks, descend sheer cliffs, battle the cold and feast on maggots.

Courteney Cox joins Bear in Ireland, where they climb jagged peaks, descend sheer cliffs, battle the cold and feast on maggots.

Korean star Song Ji-hyo will undertake the greatest challenge of her life: free diving with the legendary haenyeo female underwater sea fishers, who she feels a special connection to.

Simon Reeve treks across the high mountains and treacherous ice fields of Patagonia, coming face to face with pumas and riding with gauchos.

Simon Reeve treks across the high mountains and treacherous ice fields of Patagonia, coming face to face with pumas and riding with gauchos.

Ben Fogle journeys to the mountains of central Portugal.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

Ben Fogle journeys to the mountains of central Portugal.

Simon Reeve treks across the high mountains and treacherous ice fields of Patagonia, coming face to face with pumas and riding with gauchos.

Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.

Simon Reeve treks across the high mountains and treacherous ice fields of Patagonia, coming face to face with pumas and riding with gauchos.

In an unruly world our ancient powers must lead their people, create ways to govern and keep rebellion at bay. Who will find the right way to rule?

Ben Fogle journeys to the mountains of central Portugal.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

Korean star Song Ji-hyo will undertake the greatest challenge of her life: free diving with the legendary haenyeo female underwater sea fishers, who she feels a special connection to.

Steve Backshall goes searching for Patagonia's perfect predator: the puma. After waiting his whole life to see one, Steve sees a tiny cub and witnesses a female puma hunting an armadillo.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

The Simien Mountains is an exotic and dramatic landscape set in the northern corner of Ethiopia. Breath-taking views abound in this natural landscape inhabited by unique and endangered wildlife.

In the final episode, Sue rounds off this trip of a lifetime by heading even further off the beaten track and visiting amazing communities living in the extreme wilderness.

Korean star Song Ji-hyo will undertake the greatest challenge of her life: free diving with the legendary haenyeo female underwater sea fishers, who she feels a special connection to.

Nick learns about Civil Rights activist Medgar Evers, and paddles on the river at sunset.

Michael visits the ancient city of Cordoba and the Costa del Sol.

In the final episode, Sue rounds off this trip of a lifetime by heading even further off the beaten track and visiting amazing communities living in the extreme wilderness.

Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.

In the final episode, Sue rounds off this trip of a lifetime by heading even further off the beaten track and visiting amazing communities living in the extreme wilderness.

Steve Backshall goes in search of bat-hunting boas, meets a team working to save the deadly but cute slow loris, and he comes face to face with the king of snakes: the king cobra.

Feel the burn at a state-of-the-art gym that used to be a psychiatric hospital and in a climbing complex that once was a sugar refinery.