BBC Earth

Dara begins his journey by revealing how the moon governs time; returning to Ireland near where he grew up, he goes to Newgrange, an ancient archaeological site near the Wicklow Mountains.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

Eco-innovators introduce Zac and Darin to unique and cost-effective ways to address complex problems and help heal the environment.

Dara begins his journey by revealing how the moon governs time; returning to Ireland near where he grew up, he goes to Newgrange, an ancient archaeological site near the Wicklow Mountains.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

Eco-innovators introduce Zac and Darin to unique and cost-effective ways to address complex problems and help heal the environment.

How the earth's atmosphere came to be; the one man to have braved the atmosphere's upper reaches and survived.

An eagle falls out of its nest; Hope's fawns are in trouble; an attic full of songbirds.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

The Cassini-Huygens spacecraft has been sending images and a wealth of scientific revelations from Saturn's orbit since 2004.

An eagle falls out of its nest; Hope's fawns are in trouble; an attic full of songbirds.

Investigate an abandoned village in the shifting sands on Dubai's outskirts and a collection of inexplicable stone circles in Colombia; a mysterious hilltop tower in Iran and a puzzling purple phenomenon in Chile's Atacama Desert.

The Cassini-Huygens spacecraft has been sending images and a wealth of scientific revelations from Saturn's orbit since 2004.

An eagle falls out of its nest; Hope's fawns are in trouble; an attic full of songbirds.

Paddy McGuinness and Cherry Healey bake up gingerbread at the Original Biscuit Bakers factory in Shropshire; see how indoor snow is made with Cherry, then master the art of gift wrapping with historian Ruth Goodman.

Lev and his guide Boston are 1100 miles and four months into their journey, in the world's newest nation, South Sudan; arriving in the capital, Juba, Lev and Boston are arrested by secret police.

In the forests of western Madagascar, a small chameleon emerges from the nest; her urge is to climb and reach the high branches where she can hide amongst the leaves.

Paddy McGuinness and Cherry Healey bake up gingerbread at the Original Biscuit Bakers factory in Shropshire; see how indoor snow is made with Cherry, then master the art of gift wrapping with historian Ruth Goodman.

Dara begins his journey by revealing how the moon governs time; returning to Ireland near where he grew up, he goes to Newgrange, an ancient archaeological site near the Wicklow Mountains.

Questions about how animals adapt to the worlds built by the planet's most invasive species, humans; a search for loot to steal with macaques in Bali; hunting for easy eats with bears in Lake Tahoe; whale poo help fish populations bounce back.

Eco-innovators introduce Zac and Darin to unique and cost-effective ways to address complex problems and help heal the environment.

Simon revisits the incredible characters he's met during his travels.

Battle your way through Earth's second-greatest rainforest; follow Simon across 500 miles of dense tropical jungle full of biting insects and peat bogs to reach the Salonga region; enjoy an emotional encounter with a group of wild bonobos.

Simon travels through Brazil, from the heart of the Amazon to the city of Rio de Janeiro.

Simon revisits the incredible characters he's met during his travels.

Battle your way through Earth's second-greatest rainforest; follow Simon across 500 miles of dense tropical jungle full of biting insects and peat bogs to reach the Salonga region; enjoy an emotional encounter with a group of wild bonobos.

Simon travels through Brazil, from the heart of the Amazon to the city of Rio de Janeiro.

Simon revisits the incredible characters he's met during his travels.

Battle your way through Earth's second-greatest rainforest; follow Simon across 500 miles of dense tropical jungle full of biting insects and peat bogs to reach the Salonga region; enjoy an emotional encounter with a group of wild bonobos.

Simon travels through Brazil, from the heart of the Amazon to the city of Rio de Janeiro.

The Cassini-Huygens spacecraft has been sending images and a wealth of scientific revelations from Saturn's orbit since 2004.

An old volunteer returns; an endangered orphan is rescued; a miracle on the half shell.

Come across a set of disturbingly familiar stone monoliths in Colombia, then explore a lost city in the Sierra Nevada de Santa Marta; puzzle over an ancient ruin in Corinth, Greece, and explore an old structure on a Maltese island.

The jungle, underwater caves and lush everglades of the Yucatán shelter Mexico's largest predator, Morelet's crocodile.

An old volunteer returns; an endangered orphan is rescued; a miracle on the half shell.

Come across a set of disturbingly familiar stone monoliths in Colombia, then explore a lost city in the Sierra Nevada de Santa Marta; puzzle over an ancient ruin in Corinth, Greece, and explore an old structure on a Maltese island.

The jungle, underwater caves and lush everglades of the Yucatán shelter Mexico's largest predator, Morelet's crocodile.

An old volunteer returns; an endangered orphan is rescued; a miracle on the half shell.

In the forests of western Madagascar, a small chameleon emerges from the nest; her urge is to climb and reach the high branches where she can hide amongst the leaves.

Uncovering surprising undersea relationships and connections as sharks befriend fish and whales play with dolphins.

Ken O'Sullivan explores the dark ocean waters to the north of Ireland in winter time, encountering monstrous winter storms of the high latitudes.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

Simon revisits the incredible characters he's met during his travels.

Battle your way through Earth's second-greatest rainforest; follow Simon across 500 miles of dense tropical jungle full of biting insects and peat bogs to reach the Salonga region; enjoy an emotional encounter with a group of wild bonobos.

Simon travels through Brazil, from the heart of the Amazon to the city of Rio de Janeiro.

An international team of volcanologists in Iceland.

Explore the frontiers of technology and science that are changing the way we perceive our place in the universe.

An international team of volcanologists in Iceland.

Explore the frontiers of technology and science that are changing the way we perceive our place in the universe.

An international team of volcanologists in Iceland.

Witness animal spectacles from high above the Earth; watch a whirling herd of northern nomads; see undersea behemoths show off in the Pacific shallows; track a U.S. porcine stampede; confront top ocean predators on the Florida coast.

The jungle, underwater caves and lush everglades of the Yucatán shelter Mexico's largest predator, Morelet's crocodile.

A bald eagle needs Hope's help; a small but lethal patient keep the entire staff on their toes.

Unlock an abandoned site on a remote Antarctic isle and check out mysterious shapes in the Finnish snow; puzzle over an inexplicable monolith in the far reaches of Norway, then get shocked by a blood-red frozen waterfall at the bottom of the world.

In the heart of central Mexico, lies Sierra Gorda, a region that is home to bobcats, pumas and flying squirrels.

A bald eagle needs Hope's help; a small but lethal patient keep the entire staff on their toes.

Unlock an abandoned site on a remote Antarctic isle and check out mysterious shapes in the Finnish snow; puzzle over an inexplicable monolith in the far reaches of Norway, then get shocked by a blood-red frozen waterfall at the bottom of the world.

In the heart of central Mexico, lies Sierra Gorda, a region that is home to bobcats, pumas and flying squirrels.

Paddy McGuinness and Cherry Healey bake up gingerbread at the Original Biscuit Bakers factory in Shropshire; see how indoor snow is made with Cherry, then master the art of gift wrapping with historian Ruth Goodman.

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.

Paddy McGuinness and Cherry Healey hit factory floors across Britain for a snoop around their supersized production lines to reveal what the secrets are behind supermarket staples.

Finding relief as Paddy discovers the keys to making healing analgesic tablets and soothing throat lozenges at the Reckitt factory in Nottingham; discovering how mercury thermometers are crafted with Cherry, then examining dodgy Victorian meds with Ruth.

Paddy McGuinness visits a huge factory in north Wales that churns out 120 million boxes of breakfast cereal a year.

Paddy McGuinness and Cherry Healey visit a factory in Hertfordshire that produces 15,000 lawnmowers every year.

An international team of volcanologists in Iceland.

Explore the frontiers of technology and science that are changing the way we perceive our place in 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.

Alaskans face long days and uncertain outcomes during trapping season.

Steve Backshall and his team travel to Kyrgyzstan in search of snow leopards, one of the world's most endangered species.

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.

Alaskans face long days and uncertain outcomes during trapping season.

Steve Backshall and his team travel to Kyrgyzstan in search of snow leopards, one of the world's most endangered species.

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.

Alaskans face long days and uncertain outcomes during trapping season.

Steve Backshall and his team travel to Kyrgyzstan in search of snow leopards, one of the world's most endangered species.

In the heart of central Mexico, lies Sierra Gorda, a region that is home to bobcats, pumas and flying squirrels.

A hunt for a misunderstood coyote; the ravens have worn out their welcome and need a new home.

Puzzle over an out-of-place relic from World War II and get a bird's-eye view of stone circles in Norway; examine mysterious, ancient mounds on the banks of the Mississippi and uncover the dark history of a medieval English village.

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.

A hunt for a misunderstood coyote; the ravens have worn out their welcome and need a new home.

Puzzle over an out-of-place relic from World War II and get a bird's-eye view of stone circles in Norway; examine mysterious, ancient mounds on the banks of the Mississippi and uncover the dark history of a medieval English village.

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.

A hunt for a misunderstood coyote; the ravens have worn out their welcome and need a new home.

Dara begins his journey by revealing how the moon governs time; returning to Ireland near where he grew up, he goes to Newgrange, an ancient archaeological site near the Wicklow Mountains.

In the forests of western Madagascar, a small chameleon emerges from the nest; her urge is to climb and reach the high branches where she can hide amongst the leaves.

Eco-innovators introduce Zac and Darin to unique and cost-effective ways to address complex problems and help heal the environment.

Paddy McGuinness and Cherry Healey bake up gingerbread at the Original Biscuit Bakers factory in Shropshire; see how indoor snow is made with Cherry, then master the art of gift wrapping with historian Ruth Goodman.

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.

Alaskans face long days and uncertain outcomes during trapping season.

Steve Backshall and his team travel to Kyrgyzstan in search of snow leopards, one of the world's most endangered species.

Hannah Fry explores human stories from AI, from falling in love with chatbots to life-and-death decisions robots make.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

Life-giving rains turn the waterhole into a lush oasis; a look at new births among the herbivores, how predators cope with this seasonal change and how population increases transform the site's dynamic.

Hannah Fry explores human stories from AI, from falling in love with chatbots to life-and-death decisions robots make.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

Life-giving rains turn the waterhole into a lush oasis; a look at new births among the herbivores, how predators cope with this seasonal change and how population increases transform the site's dynamic.

Recently released ravens are attacked; tiny orphans struggle; six stinky skunks.

A journey from the heat of the tropics to the planet's frozen poles; life has spread to almost every part of the ocean, but there are many different worlds within it and each presents unique challenges.

Life-giving rains turn the waterhole into a lush oasis; a look at new births among the herbivores, how predators cope with this seasonal change and how population increases transform the site's dynamic.

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.

Allison brings her work home; some orphans try to make a break for it while Allison and Hope are away.

The view from above reveals baffling behavior from one of the ocean's fastest fish; whales with a strange, aquatic accessorizing habit; a confounding congregation of sharks down under; a perplexing collection of circles decorating the seabed.

The mystery of where water comes from or how it arrived on Earth.

Allison brings her work home; some orphans try to make a break for it while Allison and Hope are away.

The view from above reveals baffling behavior from one of the ocean's fastest fish; whales with a strange, aquatic accessorizing habit; a confounding congregation of sharks down under; a perplexing collection of circles decorating the seabed.

The mystery of where water comes from or how it arrived on Earth.

Allison brings her work home; some orphans try to make a break for it while Allison and Hope are away.

Alaskans face long days and uncertain outcomes during trapping season.

Simon revisits the incredible characters he's met during his travels.

Battle your way through Earth's second-greatest rainforest; follow Simon across 500 miles of dense tropical jungle full of biting insects and peat bogs to reach the Salonga region; enjoy an emotional encounter with a group of wild bonobos.

Simon travels through Brazil, from the heart of the Amazon to the city of Rio de Janeiro.

Simon revisits the incredible characters he's met during his travels.

Battle your way through Earth's second-greatest rainforest; follow Simon across 500 miles of dense tropical jungle full of biting insects and peat bogs to reach the Salonga region; enjoy an emotional encounter with a group of wild bonobos.

Simon travels through Brazil, from the heart of the Amazon to the city of Rio de Janeiro.

Astrophysicist Professor Tamara Davis explores one of the greatest scientific mysteries of all - how life began; one meteorite found in Australia, the Murchison meteorite, completely changed our understanding of asteroids.

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 and Alberto begin their journey on the northern shores of Mexico's Yucatán Peninsula.

Astrophysicist Professor Tamara Davis explores one of the greatest scientific mysteries of all - how life began; one meteorite found in Australia, the Murchison meteorite, completely changed our understanding of asteroids.

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.