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Hawk Cave on Socotra measures 2.5 kilometers long and features unique stalagmites and stalactites that are significant for climate change research.
Ecuador is home to 1,600 bird species, representing 13 percent of the world's total, as ornithologist Xavier shares his passion for avian life.
Hurricane Maria struck Dominica as a category 5 storm in 2017, leading the country to pursue a goal of becoming the world's first climate resilient nation.
Scotland's 500 islands off the Atlantic coast are home to diverse wildlife, including red deer, grouse, and returning otters and ospreys.
Nearly 300 deaths have been linked to a six-meter-long crocodile named Gustave in Burundi over the past decade.
A female mountain lion and her eight-month-old cub search for food in the Grand Canyon, a chasm 277 miles long.
A 1,240-kilometer road, the Carretera Austral, faces challenges like ferry crossings and difficult terrain as it pushes deeper into Chilean Patagonia.
1,300 kilometers of the Alps present extreme conditions where animals like wolves and deer adapt to survive temperatures as low as minus 40 degrees.
Morgan Freeman meets Bill Clinton to explore the concept of shared power and its implications for inclusive governance in society.
Jim and Jamie Dutcher spent six years living with a pack of wolves in Idaho to highlight the social and intelligent behaviors of these often-misunderstood animals.
In Indonesia's Jambi Province, the critically endangered Sumatran tiger faces extinction due to habitat loss and human conflict, prompting urgent conservation efforts.
Just 12,000 years ago, Tasmania separated from the Australian mainland, creating a unique environment for its diverse wildlife, including the Tasmanian devil.
As many as 400 pairs of bald eagles live in Chilkoot State Park, Alaska, relying on the salmon migration in the Chilkat River for survival.
Insects may number around 10 million species, making up 90% of all life forms on Earth and playing essential roles in ecosystems and food chains.
Every four years, lemmings experience a population explosion, allowing snowy owls to raise up to eleven chicks, each needing four rodents daily to survive.
Four rhinos die each day in South Africa due to poaching, prompting a group of armed conservationists to fight against this ongoing threat.
A Spinosaurus vertebra recovered in 2008 showed signs of having been bitten in half, suggesting fierce competition among large predators.
Carnism, a term coined by psychologist Melanie Joy, describes the societal norms that dictate which animals are considered food and which are not.
Humaitá, na Amazônia, é lar da empresa de ônibus 'Siquiera', dirigida por Luis e Leandro.
Relaxation is enhanced through visual experiences of diverse habitats, including ancient forests, deserts, Atlantic rainforests, and Argentine wetlands.
More than 100 operations were performed on Greg Rasmussen after he crashed his ultralight plane in the African bush, leaving him severely injured.
Two million king penguins return to South Georgia each summer to reunite with their chicks after months spent at sea.
Miss Marple, a rat, detects land-mines in Mozambique after training in Tanzania.
Nineteen lions make up the Ombika pride in Etosha National Park, led by two dominant males each weighing 550 pounds.
Becca Skinner shares her evolution from a university grant project in New Orleans focused on Hurricane Katrina recovery to a successful career in adventure photography.
Corvids, such as ravens and Alpine choughs, demonstrate advanced intelligence, tool-making abilities, and strong social bonds with their partners.
In the Swiss Jura mountains, ant societies are explored through advanced 4K technology, revealing their complex structures and interactions during peace and conflict.
Quizilol, an 18-year-old Tsaatan herder, faces a blizzard that causes his young reindeer stallion to escape into the mountains of northern Mongolia.
In Katmai National Park, Alaska, brown bears fish for salmon and grizzly bears forage for berries along the Douglas River amid volcanic landscapes.
Mark Wiens joins Mook and her family in a Karen village to fish and forage for ingredients to prepare a traditional meal for a rice planting ceremony.
Christian Moullec teaches geese forgotten migratory routes by flying alongside them in a microlite, aiming to restore their natural instincts.
Workers at the Pullman National Fish Hatchery release 12 million salmon each year to compensate for habitat loss caused by the Shasta Dam.
There are 75,000 dams over three feet high in the United States, raising concerns about their ecological impact and the future of free-flowing rivers.
Temperatures in Kamchatka can drop below minus 50 degrees, making it one of the coldest inhabited places on Earth.
A program in New York pairs prison inmates with puppies to train them as service dogs for veterans suffering from PTSD.
The Pacific Ocean, covering 165,250,000 square kilometers, is home to diverse marine life and plays a vital role in global weather patterns and biodiversity.
This special examines if mankind will eventually disappear from Earth and its impact.
A 200-kilogram silverback gorilla named Macumba leads his family through the forests north of the Congo River, searching for food and avoiding dangers.
Elysée and Tantal travel hundreds of kilometers in a bush taxi to study the reproductive cycle of the baobab tree in southern Madagascar.
Researchers in Canada seek alternative solutions for the collapsing European bee population.
Two million baby salmon swim out of nets in Alaska, attracting humpback whales that have traveled thousands of kilometers to feed on them.
Bill Mason paddles through the largest and most spectacular lake in the world, sharing his love for nature and canoeing in Ontario's waterways.
An earthquake of magnitude 8 or higher releases as much energy as a billion tons of TNT, threatening millions living near major fault lines.
An estimated 1.7 million people died during the Khmer Rouge regime, which ruled Cambodia from 1975 to 1979, leaving a lasting impact on the country.
A family of Saddle black clown fish works together to create a safe nursery for their eggs among the tentacles of a carpet anemone.
The ice pack reaches a maximum cover of 14 million square kilometers by the end of winter, crucial for polar bears hunting seals beneath the surface.
Porters in the High Tatras carry loads of up to 100 kilos on their backs, ascending 1,000 meters to deliver supplies to remote mountain huts.
A female rockhopper penguin embarks on a thousand-mile swim, facing 20-foot waves and strong currents to reach the Falkland Islands for breeding.
