BBC Earth

In the remote reaches of Asia's frozen north, creatures must overcome unique challenges, finding exceptional ways to thrive in a hostile world that pushes life to its very limits.

Stanley Tucci visits one of the most famous and frequented regions of Italy, the Italian Riviera, for the glamour of Portofino and the stunning picture-perfect fishing villages of the Cinque Terre.

Michael rides one of the steepest and fastest funicular railways in the world and steps into a tropical paradise as he releases exotic specimens at Malaysia's first butterfly sanctuary.

Ash and his team battle rapids, dense jungle and wildlife to uncover the hidden source of the Coppename River.

Steve Backshall is taking ten novice divers on one Deadly mission - to dive with sharks in Bimini, the shark capital of the world, with the ultimate goal being to qualify as scuba divers.

Some of the team explores the mangroves, which are essential for the survival of some sharks. While there, they come face to face with baby lemon sharks.

Stanley Tucci visits one of the most famous and frequented regions of Italy, the Italian Riviera, for the glamour of Portofino and the stunning picture-perfect fishing villages of the Cinque Terre.

Ash and his team battle rapids, dense jungle and wildlife to uncover the hidden source of the Coppename River.

Asia's jungles are beautiful and exceptionally diverse, but whilst they provide shelter, food and opportunity, they are also full of dangers and hidden threats.

Michael rides one of the steepest and fastest funicular railways in the world and steps into a tropical paradise as he releases exotic specimens at Malaysia's first butterfly sanctuary.

Griff dives into New Orleans' rich culture, jazz roots, vibrant food, and laid-back Southern soul.

Michael rides one of the steepest and fastest funicular railways in the world and steps into a tropical paradise as he releases exotic specimens at Malaysia's first butterfly sanctuary.

Ash and his team battle rapids, dense jungle and wildlife to uncover the hidden source of the Coppename River.

Griff dives into New Orleans' rich culture, jazz roots, vibrant food, and laid-back Southern soul.

Steve Backshall is taking ten novice divers on one Deadly mission - to dive with sharks in Bimini, the shark capital of the world, with the ultimate goal being to qualify as scuba divers.

Some of the team explores the mangroves, which are essential for the survival of some sharks. While there, they come face to face with baby lemon sharks.

The largest of all of Earth's displays stretches across thousands of kilometres in the night sky: the Aurora Borealis. The arctic wilderness of Northern Sweden is one of the best places to see it.

One of the strongest storms on record in Florida's Big Bend region, Hurricane Idalia, makes landfall. Wildfires ravage Oregon as communities flee to safety.

The final chapter. Olimba struggles with old age, and the wild dog story takes an unexpected turn. The lions and the hyenas both enjoy a baby boom - but who has the power to rule?