BBC Earth

Costa Rica is a world of its own; a tropical corridor squeezed between two great oceans, powered by rivers and volcanoes; its volcanoes erupt and deposit minerals into the soil, making the land fertile and creating the country's rich bio-diversity.

Hope fights to save a family of foxes; the nursery is hit by a mysterious outbreak.

Exploring the Milky Way from the mythology of ancient sky watchers to how scientists are mapping it from the inside out.

Examining the science behind the birth of the universe.

The Namib Desert is one of the oldest deserts of all; it's also one of the most diverse; with 50-degree temperatures and half a millimeter of rainfall annually.

Steve Backshall, Chris Packham and Ella Al-Shamahi visit the Maldives, Iceland and Cambodia; Steve Backshall travels to the Maldives, an area facing significant challenges because of climate change.

Exploring the Milky Way from the mythology of ancient sky watchers to how scientists are mapping it from the inside out.

Examining the science behind the birth of the universe.

From dolphins to cuttlefish, ocean animals possess emotions and behavior similar to humans, including the capacity to love, grieve, deceive and invent.

Ken O'Sullivan explores the marine life of the northern part of the ocean, beginning with the dark waters off the coast of the north of Ireland in winter and the strange animals that can be found there.

Levison Wood sets out to walk the length of the River Nile from source to sea; his nine-month, seven-million-step journey takes him through jungles, savannah, deserts, cities and war zones in some of Africa's most remote and spectacular locations.

A tiny turtle hatchling struggles out of her egg, emerging onto the roadside, and faces the task of crossing Highway 60; with the wetland somewhere on the other side of the road, she deals with trucks and roadside predators like ravens and foxes.

Paddy explores a South Wales factory making Jammie Dodgers, revealing how they produce 4.4 billion biscuits a year; Cherry tests dunking science and Ruth uncovers wartime history.

Coral Reefs are vibrant undersea cities where life has found ways to survive.

A tiny turtle hatchling struggles out of her egg, emerging onto the roadside, and faces the task of crossing Highway 60; with the wetland somewhere on the other side of the road, she deals with trucks and roadside predators like ravens and foxes.

Paddy explores a South Wales factory making Jammie Dodgers, revealing how they produce 4.4 billion biscuits a year; Cherry tests dunking science and Ruth uncovers wartime history.

Coral Reefs are vibrant undersea cities where life has found ways to survive.

A tiny turtle hatchling struggles out of her egg, emerging onto the roadside, and faces the task of crossing Highway 60; with the wetland somewhere on the other side of the road, she deals with trucks and roadside predators like ravens and foxes.

Paddy explores a South Wales factory making Jammie Dodgers, revealing how they produce 4.4 billion biscuits a year; Cherry tests dunking science and Ruth uncovers wartime history.

Coral Reefs are vibrant undersea cities where life has found ways to survive.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

Twin fawns arrive at the centre; a volunteer searches for orphans in the woods; Hope tends to a tiny owl.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

Iceland is the world's largest volcanic island and new ground is born daily.

Twin fawns arrive at the centre; a volunteer searches for orphans in the woods; Hope tends to a tiny owl.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

Iceland is the world's largest volcanic island and new ground is born daily.

Twin fawns arrive at the centre; a volunteer searches for orphans in the woods; Hope tends to a tiny owl.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

Paddy explores a South Wales factory making Jammie Dodgers, revealing how they produce 4.4 billion biscuits a year; Cherry tests dunking science and Ruth uncovers wartime history.

Kayaking the white water of the Russian peninsula of Kamchatka; examining brown bears in the wilderness.

Steve Backshall, Chris Packham and Ella Al-Shamahi visit the Maldives, Iceland and Cambodia; Steve Backshall travels to the Maldives, an area facing significant challenges because of climate change.

A tiny turtle hatchling struggles out of her egg, emerging onto the roadside, and faces the task of crossing Highway 60; with the wetland somewhere on the other side of the road, she deals with trucks and roadside predators like ravens and foxes.

Paddy explores a South Wales factory making Jammie Dodgers, revealing how they produce 4.4 billion biscuits a year; Cherry tests dunking science and Ruth uncovers wartime history.

Coral Reefs are vibrant undersea cities where life has found ways to survive.

Dara tells the story of how the first photograph of the far side of the moon left scientists baffled and tries a virtual reality headset to walk on the moon.

Along the coastline, Zac and Darin take a deep dive into the coral reef restoration techniques supporting a vast underwater ecosystem.

Dara tells the story of how the first photograph of the far side of the moon left scientists baffled and tries a virtual reality headset to walk on the moon.

Along the coastline, Zac and Darin take a deep dive into the coral reef restoration techniques supporting a vast underwater ecosystem.

Dara tells the story of how the first photograph of the far side of the moon left scientists baffled and tries a virtual reality headset to walk on the moon.

Along the coastline, Zac and Darin take a deep dive into the coral reef restoration techniques supporting a vast underwater ecosystem.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

Lynn plays surrogate to baby beavers; Zach is forced to follow a seal along the coastline; a patient returns after a release goes wrong.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Iceland's volcanoes generate one third of earth's land-based lava, but the land was sculpted by ice.

Lynn plays surrogate to baby beavers; Zach is forced to follow a seal along the coastline; a patient returns after a release goes wrong.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Iceland's volcanoes generate one third of earth's land-based lava, but the land was sculpted by ice.

Lynn plays surrogate to baby beavers; Zach is forced to follow a seal along the coastline; a patient returns after a release goes wrong.

Paddy explores a South Wales factory making Jammie Dodgers, revealing how they produce 4.4 billion biscuits a year; Cherry tests dunking science and Ruth uncovers wartime history.

Levison Wood sets out to walk the length of the River Nile from source to sea; his nine-month, seven-million-step journey takes him through jungles, savannah, deserts, cities and war zones in some of Africa's most remote and spectacular locations.

Paddy explores a South Wales factory making Jammie Dodgers, revealing how they produce 4.4 billion biscuits a year; Cherry tests dunking science and Ruth uncovers wartime history.

Dara tells the story of how the first photograph of the far side of the moon left scientists baffled and tries a virtual reality headset to walk on the moon.

Along the coastline, Zac and Darin take a deep dive into the coral reef restoration techniques supporting a vast underwater ecosystem.

Simon reflects on the modern threats to the world's spectacular wilderness.

Wander through the parched Kalahari Desert in search of wildlife, including one of Africa's largest elephant enclaves; go hunting with a group of San trackers who still live in the traditional way, then encounter the region's famous lions.

SSimon Reeve embarks on a journey to discover the wild and remote landscapes of South America and their human stories.

Simon reflects on the modern threats to the world's spectacular wilderness.

Wander through the parched Kalahari Desert in search of wildlife, including one of Africa's largest elephant enclaves; go hunting with a group of San trackers who still live in the traditional way, then encounter the region's famous lions.