BBC Earth (HD)

Ben travels to northern Norway inside the artic circle to catch up with Randi after five years. Randi has expanded her small holding and is now a crucial member of the local community.

Bear and tennis champion Roger Federer hit the slopes the hard way.

Joanna travels through Scotland, the Outer Hebrides and Northern Ireland.

Renowned wildlife film-maker Gordon Buchanan gets close to wild cheetah.

In Texas, Simon joins the US Border Patrol, who pick up migrants who have illegally crossed the Rio Grande river in search of a new life.

Joanna travels through Scotland, the Outer Hebrides and Northern Ireland.

As Autumn draws near, the Polar animals must fatten up, finish raising their young, and take the opportunity to play and socialise.

Renowned wildlife film-maker Gordon Buchanan gets close to wild cheetah.

Volcano expert Chris Horsley returns to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared in the ground. It runs directly from the slopes of Nyiragongo volcano down to lake Kivu.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

Bear and tennis champion Roger Federer hit the slopes the hard way.

Scandinavia's extremes have been shaped by ice and fire, but it's the sun that reigns here. Polar bears, musk oxen and arctic foxes must survive from the polar night to the midnight sun.

Joanna travels through Scotland, the Outer Hebrides and Northern Ireland.

Actor Joseph Gordon-Levitt tackles Kenya's unyielding terrain with Bear Grylls. Dropped into the elements from a helicopter, Joseph and Bear navigate a perilous rappel and milk a camel.

During the 1950s a young Sir David Attenborough and a team from London Zoo worked to conserve rare and exotic animals by bringing them to the UK. Part 2/2.

Meet 87 year old Tim Slessor, the British adventurer plotting his last great adventure: recreating his epic 1955 expedition - 'First Overland: London to Singapore' - which a young David Attenborough commissioned for the BBC.

Firefighters battle through apocalyptic scenes on Australia's Kangaroo Island as it is besieged by deadly bushfires. In Kansas, two hard-core tornado chasers allow a tourist to ride along with them.

Actor Joseph Gordon-Levitt tackles Kenya's unyielding terrain with Bear Grylls. Dropped into the elements from a helicopter, Joseph and Bear navigate a perilous rappel and milk a camel.

During the 1950s a young Sir David Attenborough and a team from London Zoo worked to conserve rare and exotic animals by bringing them to the UK. Part 2/2.

Meet 87 year old Tim Slessor, the British adventurer plotting his last great adventure: recreating his epic 1955 expedition - 'First Overland: London to Singapore' - which a young David Attenborough commissioned for the BBC.

Firefighters battle through apocalyptic scenes on Australia's Kangaroo Island as it is besieged by deadly bushfires. In Kansas, two hard-core tornado chasers allow a tourist to ride along with them.

Actor Joseph Gordon-Levitt tackles Kenya's unyielding terrain with Bear Grylls. Dropped into the elements from a helicopter, Joseph and Bear navigate a perilous rappel and milk a camel.

During the 1950s a young Sir David Attenborough and a team from London Zoo worked to conserve rare and exotic animals by bringing them to the UK. Part 2/2.

Meet 87 year old Tim Slessor, the British adventurer plotting his last great adventure: recreating his epic 1955 expedition - 'First Overland: London to Singapore' - which a young David Attenborough commissioned for the BBC.

Firefighters battle through apocalyptic scenes on Australia's Kangaroo Island as it is besieged by deadly bushfires. In Kansas, two hard-core tornado chasers allow a tourist to ride along with them.

Volcano expert Chris Horsley returns to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared in the ground. It runs directly from the slopes of Nyiragongo volcano down to lake Kivu.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

During the 1950s a young Sir David Attenborough and a team from London Zoo worked to conserve rare and exotic animals by bringing them to the UK. Part 2/2.

Sue heads south to the enticing turquoise waters of Phuket, the country's largest island. Making her diving debut, she learns how destructive humans can be to the fragile coral reefs.

Volcano expert Chris Horsley returns to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared in the ground. It runs directly from the slopes of Nyiragongo volcano down to lake Kivu.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

Michael enjoys an action-packed day savouring exquisite grilled fish, modelling traditional Spanish capes, and unearthing a secret speakeasy that was the favourite haunt of a literary hero.

Sue heads south to the enticing turquoise waters of Phuket, the country's largest island. Making her diving debut, she learns how destructive humans can be to the fragile coral reefs.

During the 1950s a young Sir David Attenborough and a team from London Zoo worked to conserve rare and exotic animals by bringing them to the UK. Part 2/2.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

Michael enjoys an action-packed day savouring exquisite grilled fish, modelling traditional Spanish capes, and unearthing a secret speakeasy that was the favourite haunt of a literary hero.

Scandinavia's extremes have been shaped by ice and fire, but it's the sun that reigns here. Polar bears, musk oxen and arctic foxes must survive from the polar night to the midnight sun.

Sue heads south to the enticing turquoise waters of Phuket, the country's largest island. Making her diving debut, she learns how destructive humans can be to the fragile coral reefs.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

In South America, Gordon flies over the Amazon in search of illegal loggers, and in the Andes he meets conservationists searching for new species before their habitat is destroyed.

Meet 87 year old Tim Slessor, the British adventurer plotting his last great adventure: recreating his epic 1955 expedition - 'First Overland: London to Singapore' - which a young David Attenborough commissioned for the BBC.

Volcano expert Chris Horsley returns to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared in the ground. It runs directly from the slopes of Nyiragongo volcano down to lake Kivu.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

As winter turns to spring, Alaskans must seize the warming days. The everyday struggles of living in the secluded state of Alaska where one wrong decision could cost you your life.

Michael enjoys an action-packed day savouring exquisite grilled fish, modelling traditional Spanish capes, and unearthing a secret speakeasy that was the favourite haunt of a literary hero.

In South America, Gordon flies over the Amazon in search of illegal loggers, and in the Andes he meets conservationists searching for new species before their habitat is destroyed.

Volcano expert Chris Horsley returns to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared in the ground. It runs directly from the slopes of Nyiragongo volcano down to lake Kivu.

Scandinavia's extremes have been shaped by ice and fire, but it's the sun that reigns here. Polar bears, musk oxen and arctic foxes must survive from the polar night to the midnight sun.

Michael enjoys an action-packed day savouring exquisite grilled fish, modelling traditional Spanish capes, and unearthing a secret speakeasy that was the favourite haunt of a literary hero.

Joanna travels through Scotland, the Outer Hebrides and Northern Ireland.

Volcano expert Chris Horsley returns to the Congo to investigate a potentially lethal threat to over two-million people. After a recent eruption, a huge 10-mile-long fracture has appeared in the ground. It runs directly from the slopes of Nyiragongo volcano down to lake Kivu.

As winter turns to spring, Alaskans must seize the warming days. The everyday struggles of living in the secluded state of Alaska where one wrong decision could cost you your life.

In South America, Gordon flies over the Amazon in search of illegal loggers, and in the Andes he meets conservationists searching for new species before their habitat is destroyed.

Sue heads south to the enticing turquoise waters of Phuket, the country's largest island. Making her diving debut, she learns how destructive humans can be to the fragile coral reefs.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

Scandinavia's extremes have been shaped by ice and fire, but it's the sun that reigns here. Polar bears, musk oxen and arctic foxes must survive from the polar night to the midnight sun.

As winter turns to spring, Alaskans must seize the warming days. The everyday struggles of living in the secluded state of Alaska where one wrong decision could cost you your life.

In South America, Gordon flies over the Amazon in search of illegal loggers, and in the Andes he meets conservationists searching for new species before their habitat is destroyed.

Sue heads south to the enticing turquoise waters of Phuket, the country's largest island. Making her diving debut, she learns how destructive humans can be to the fragile coral reefs.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

Scandinavia's extremes have been shaped by ice and fire, but it's the sun that reigns here. Polar bears, musk oxen and arctic foxes must survive from the polar night to the midnight sun.

In South America, Gordon flies over the Amazon in search of illegal loggers, and in the Andes he meets conservationists searching for new species before their habitat is destroyed.

Volcan del Fuego in Guatemala is one of the most 'explosive' volcanoes of them all. To reveal what's happening within the volcano, witness the daring attempt to lower a data gathering probe inside.

In Texas, Simon joins the US Border Patrol, who pick up migrants who have illegally crossed the Rio Grande river in search of a new life.

Sue heads south to the enticing turquoise waters of Phuket, the country's largest island. Making her diving debut, she learns how destructive humans can be to the fragile coral reefs.

Meet 87 year old Tim Slessor, the British adventurer plotting his last great adventure: recreating his epic 1955 expedition - 'First Overland: London to Singapore' - which a young David Attenborough commissioned for the BBC.

In South America, Gordon flies over the Amazon in search of illegal loggers, and in the Andes he meets conservationists searching for new species before their habitat is destroyed.

Sue reaches the final episode with a visit to the country's heady and exotic capital, Bangkok.

As winter turns to spring, Alaskans must seize the warming days. The everyday struggles of living in the secluded state of Alaska where one wrong decision could cost you your life.

Martin travels to Papua New Guinea and lives amongst the subsistence farmers of the Trobriand Islands. There, he plays their favourite game - cricket! Next he visits the volcanic island of New Britain. Both are a reminder of the fragility of island existence in this part of the Pacific Ocean.