BBC Earth

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

Whether a tree's lifespan is a hundred or a thousand years, eventually it reaches the end of its story and dies. But for trees, the end of one life can mean the beginning of another.

Griff Rhys Jones finishes his journey across Canada in the popular, lifestyle province of British Columbia in the Pacific Northwest and discovers what it is about this place that makes people happy.

Shaquille O'Neal joins Bear in the Adirondack Mountains of Update New York, where they deal with dense forest, leeches and steep cliffs.

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.

The presenter takes a train ride into tea country to find out about Ceylon tea. Xander also meets a master Kandyan dancer to learn about Kandy city's annual procession.

Professor Brian Cox explores the solar system's ice giants, frozen moons and worlds where ice behaves in unimaginable ways.

Shaquille O'Neal joins Bear in the Adirondack Mountains of Update New York, where they deal with dense forest, leeches and steep cliffs.

Professor Brian Cox explores the solar system's ice giants, frozen moons and worlds where ice behaves in unimaginable ways.

The presenter takes a train ride into tea country to find out about Ceylon tea. Xander also meets a master Kandyan dancer to learn about Kandy city's annual procession.

Whether a tree's lifespan is a hundred or a thousand years, eventually it reaches the end of its story and dies. But for trees, the end of one life can mean the beginning of another.

Professor Brian Cox explores the solar system's ice giants, frozen moons and worlds where ice behaves in unimaginable ways.

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.

The presenter takes a train ride into tea country to find out about Ceylon tea. Xander also meets a master Kandyan dancer to learn about Kandy city's annual procession.

Professor Brian Cox explores the solar system's ice giants, frozen moons and worlds where ice behaves in unimaginable ways.