BBC Earth

Ben travels to the vast forests of the Rhodope Mountains in Bulgaria to join Miriam and Peter, a couple who have chosen life as nomads, hiking through some of the world's most striking wildernesses.

Uncovering the mystery of where some animals disappear to each year.

Christmas is looming, but this is no holiday period for the farmers. In the east of Scotland east of Inverness, Martin's sheds are now full of cows and their newborn calves. In the West in Argyll, the weather takes a turn for the worse.

It's January and the new year brings wild weather. On the Isle of Lewis in the Outer Hebrides, Sandy Granville is surveying the damage to his croft after one of the worst storms on record.

Many passionate people are dedicated to saving the wild animals of Asia. These individuals and their ingenious solutions give us hope and optimism for the future of the continent.

Alexander witnesses a volcanic eruption, visits the original geyser, learns about the Icelandic belief in elves, takes a trip to an unusual museum and meets an Icelandic rock band.

David Attenborough examines the chameleon's tongue and the giraffe's neck.

The second leg of Anton and Giovanni's trip takes them to Mount Etna, Europe's most active volcano, where they are joined by 2021 Strictly champion Rose Ayling-Ellis.

Dara tells the story of how the first photograph of the far side of the moon left scientists baffled. And he tries a virtual reality headset to takes his very own giant leap on the 'moon's' surface.

The end of the winter season means that Chip and Agnes have one last chance to harvest fat caribou until late summer.

The adventurer meets Jeff and Rose and their five daughters who live in the vast wilderness of north-west Canada. It's late autumn, and before long the family will be locked in by two metres of snow.

Alexander Armstrong continues his journey around Iceland where he samples the local delicacy of rotten shark, takes a whale watching trip, plays golf at midnight, learns to ride an Icelandic horse and sings in a farmers' choir.

In northern Guangdong, majestic mountain ranges are home to a dazzling array of wildlife; Silver Pheasants, Chinese Pangolins, Black Kites, Chinese Giant Salamanders, and an entirely new species of cave gecko.

The second leg of Anton and Giovanni's trip takes them to Mount Etna, Europe's most active volcano, where they are joined by 2021 Strictly champion Rose Ayling-Ellis.

Sue Aikens must hunt for caribou before they disappear from the tundra. Jessie Holmes scouts his new land for future hunting grounds.

Ben visits the Caribbean island of Montserrat, where a volcano devasted large areas in the 1990s. Within two years most of the population had fled their homes. Ben uncovers unique stories of heroism and loss.

For the final part of their trip around Sicily, Anton and Giovanni make their way to Gio's hometown of Palermo, stopping along the way to meet some beer-brewing monks.

A tornado touchdown terrorises a school in Texas. The violent volcanic eruption in Tonga and a tsunami leaves residents trapped with nowhere to go and pilots battle extreme cross winds.

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.

Sue Aikens must hunt for caribou before they disappear from the tundra. Jessie Holmes scouts his new land for future hunting grounds.

Ben visits the Caribbean island of Montserrat, where a volcano devasted large areas in the 1990s. Within two years most of the population had fled their homes. Ben uncovers unique stories of heroism and loss.

For the final part of their trip around Sicily, Anton and Giovanni make their way to Gio's hometown of Palermo, stopping along the way to meet some beer-brewing monks.

A tornado touchdown terrorises a school in Texas. The violent volcanic eruption in Tonga and a tsunami leaves residents trapped with nowhere to go and pilots battle extreme cross winds.