Alaska's Grizzly Gauntlet

There's nothing else like it. Chris Packham reveals the epic, four-billion-year story of our home - from its dramatic creation to the arrival of human life... and whatever's next.

A follow-up to the 1990 Radio 4 series in which the late Douglas Adams and Mark Carwardine travelled around the world in search of endangered species. 20 years later Stephen Fry and Mark Carwardine go back to see what has become of the animals in two decades, and to discover what has affected their fortunes.

In the frontier town of Nome, Alaska, there’s a gold rush on. But you've never seen gold mining like this before — here, the precious metal isn't found in the ground. It’s sitting in the most unlikely of places: the bottom of the frigid, unpredictable Bering Sea. And there are a handful of people willing to risk it all to bring it to the surface.

Sir David discovers a microscopic world that’s invisible to the naked eye, where insects feed and breed, where flowers fluoresce and where plants communicate with each other and with animals using scent and sound.

Michael Portillo heads for the Last Frontier of the United States armed with his 1899 Appleton's Guide-Book to Alaska.

Dramatic life saving surgery.

How can we help critically endangered animals? Follow a team of wildlife filmmakers as they journey to the world’s remotest corners trying to capture groundbreaking footage of the planet’s most elusive species using cutting-edge technology.

Follow rare young animals over several years as they’re prepared to return to their homelands, help save their species, and change the face of our planet.

For several thousand years the moose have walked the same path to get to the rich pastures of summer. Follow the walk live from Kullberg in the north of Sweden.

Chris Packham reveals the natural world’s surprising brainboxes and clever strategies.

Angler and biologist Jeremy Wade uncovers the bizarre, the weird and the mysterious as he investigates baffling, unsolved mysteries beneath the surface of dark waters.

An ambitious seven-year natural history series documenting six of the planet's most threatened ecosystems and meeting the people fighting to restore the Earth’s delicate balance.

Wildlife cameraman Gordon Buchanan follows a wild polar bear family over three seasons in Svalbard.

Michael Palin undertakes an epic journey of 23,000 miles, travelling from the North to the South Pole across 17 countries with a minimum of air travel, all on a tight deadline.

Through unprecedented access we showcase the spectacle that is Wild Russia. From east to west, via mountains, volcanoes, deserts, lakes and Arctic ice, this breathtaking six-part series uses stunning cinematography to chart the dazzling natural wonders of this vast country.

Professor Robert Winston meets Lucy, the first upright ape, and follows her ancestors on the three-million-year journey to civilisation.

Exploring the vital role colour plays in the daily lives of many species.

See It Now is an American newsmagazine and documentary series broadcast by CBS from 1951 to 1958. It was created by Edward R. Murrow and Fred W. Friendly, Murrow being the host of the show. From 1952 to 1957, See It Now won four Emmy Awards and was nominated three other times. It also won a 1952 Peabody Award, which cited its

Australian host Steve Irwin and his wife Terri run a wildlife refuge. Their shared passion is educating the world about wildlife, including the much feared crocodile and numerous venomous snakes. Steve's specialty is the capture and relocation of crocodiles. No animal appears too threatening to Steve, his true respect for animals is the foundation for everything he does.

From Pete, David and Leila - the creators of History Time, Voices of the Past and Something Incredible. From dust to dinosaurs; come with us as we explore the entire history of our planet. History of the Earth tells the entire story of the Earth, from its formation 4.5 billion years ago to today – covering eye-watering geology and bizarre biology along the way.