BBC Earth 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. 2026-05-20 An epic journey into the unknown, a realm that feels almost like science fiction. 2026-05-20 Coral Reefs are vibrant undersea cities where life has found ways to survive. 2026-05-20 The big blue is the world's greatest wilderness, far from shore and many kilometers deep. 2026-05-20 From forests to undersea prairies, it is the green of the sea that brings life to oceans. 2026-05-20 Coasts are the most changeable habitats of the ocean world. 2026-05-20 Alaskans power through the dog days of summer. 2026-05-20 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. 2026-05-20 Many passionate people are dedicated to saving the wild animals of Asia; these individuals and their ingenious solutions give hope and optimism for the future of the continent. 2026-05-20 Alaskans power through the dog days of summer. 2026-05-20 The first mammal of the year is born. 2026-05-20 Iceland is the world's largest volcanic island and new ground is born daily. 2026-05-20 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. 2026-05-20 The first mammal of the year is born. 2026-05-20 Iceland is the world's largest volcanic island and new ground is born daily. 2026-05-20 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. 2026-05-20 The first mammal of the year is born. 2026-05-20 As the sun fades across the land, Alaskans brace for Dark Winter's return. 2026-05-20 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. 2026-05-20 Extreme locales include Mount Everest's Khumbu Icefall, the Grand Canyon, and the slopes of Mount Kilimanjaro. 2026-05-20 As the sun fades across the land, Alaskans brace for Dark Winter's return. 2026-05-20 In the middle of the jungle in Borneo, Dr Ann Jones and a team of scientists search high and low for a mammal as big as a dog and covered in scales; one of the world's most trafficked animals: the weird and wonderful pangolin. 2026-05-20 Steve dives with 100 grey nurse sharks; he joins a mission in Indonesia to save sharks from overfishing. 2026-05-20 The extraordinary story of how the human species, Homo sapiens, first emerged, where the discoveries of recent years are revolutionising the understanding of humanity's origin story. 2026-05-20 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. 2026-05-20 The story behind David Attenborough's wildlife documentary series "Life on Earth," which changed his life forever. 2026-05-21 Explaining how freshwater is the lifeblood of planet Earth and why animals depend on it for their survival. 2026-05-21 The story of how plant life turned Earth from a barren rock into a vibrant green world; a four-billion year saga of highs and lows that almost wiped out all life on the planet. 2026-05-21 The story behind David Attenborough's wildlife documentary series "Life on Earth," which changed his life forever. 2026-05-21 Explaining how freshwater is the lifeblood of planet Earth and why animals depend on it for their survival. 2026-05-21 The story of how plant life turned Earth from a barren rock into a vibrant green world; a four-billion year saga of highs and lows that almost wiped out all life on the planet. 2026-05-21 As the sun fades across the land, Alaskans brace for Dark Winter's return. 2026-05-21 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. 2026-05-21 Extreme locales include Mount Everest's Khumbu Icefall, the Grand Canyon, and the slopes of Mount Kilimanjaro. 2026-05-21 As the sun fades across the land, Alaskans brace for Dark Winter's return. 2026-05-21 Hope struggles to save a seal for the first time. 2026-05-21 Iceland's volcanoes generate one third of earth's land-based lava, but the land was sculpted by ice. 2026-05-21 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. 2026-05-21 Hope struggles to save a seal for the first time. 2026-05-21 Iceland's volcanoes generate one third of earth's land-based lava, but the land was sculpted by ice. 2026-05-21 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. 2026-05-21 An epic journey into the unknown, a realm that feels almost like science fiction. 2026-05-21 Coral Reefs are vibrant undersea cities where life has found ways to survive. 2026-05-21 The big blue is the world's greatest wilderness, far from shore and many kilometers deep. 2026-05-21 From forests to undersea prairies, it is the green of the sea that brings life to oceans. 2026-05-21 Coasts are the most changeable habitats of the ocean world. 2026-05-21 The story behind David Attenborough's wildlife documentary series "Life on Earth," which changed his life forever. 2026-05-21 Explaining how freshwater is the lifeblood of planet Earth and why animals depend on it for their survival. 2026-05-21 The story of how plant life turned Earth from a barren rock into a vibrant green world; a four-billion year saga of highs and lows that almost wiped out all life on the planet. 2026-05-21 Alaskans push their limits amid the warming tundra and melting landscape. 2026-05-22