Seasons & episodes

Amid collapsing biodiversity worldwide, Mary Reynolds of Ireland is building a movement to turn gardeners into guardians of the planet by returning our own patch of land to nature and by restoring hope that individual action can create lasting change.

The golden lion tamarin stands as a beacon of hope and survival in the face of extinction after an outbreak of yellow fever led to a loss of nearly a third of their wild population.

In Brazil’s Atlantic Forest, Mauricio Ruiz has turned his love for nature into action by working with the community to reforest a critical stretch of the nation’s most endangered forest, and by using drones to help him reach his goal of planting 15 million new trees.

Fernanda Abra leads a crucial conservation initiative along the roadways of Brazil, where vehicles annually kill about 475 million vertebrates — more than double the country's human population. She spearheads over 300 projects targeting roads with high wildlife casualties.

Jaguar populations are falling worldwide, but the big cats are thriving in Belize, where one-third of the Central American country is protected habitat — but even this paradise isn’t perfect.

Many of the world’s most beloved frogs and amphibians are headed for extinction, but inside “The Ark” in Panama, some of those threatened species are given a fighting chance. Using innovative technology and breakthrough genetics, researchers have ignited a cadre of solutions to save these rare and cherished species.

On Panama’s remote Pearl Islands, marine biologist Callie Veelenturf is using her research on endangered sea turtles to help the country enshrine the rights of nature into law — and help the communities living there protect their own environment and livelihood.

Black-footed ferrets, North America’s only native ferret, still depend on humans for survival. That’s why a dedicated team has engineered new and innovative tools to help them make it in the wild.

Golden eagles are one of the largest raptors in North America, and their numbers are declining due to an unlikely poison: lead ammunition left behind by game hunters. Eagles scavenge on animal remains contaminated by lead bullets, so conservationists are proposing a radical solution: getting hunters to go lead-free.

Inventor Boyan Slat is on a mission to rid oceans of plastic. His team at The Ocean Cleanup designs and deploys systems that pull trash from the open ocean. Now, he’s stopping the pollution at its source: rivers where plastic is easier to catch, like those in Kingston Harbor, Jamaica.

Los Angeles is well known for its celebrities, so when the fearless cougar P-22 gained fame for making its home in the midst of the city, he inspired an effort to build the world’s largest wildlife crossing and helped spark a national campaign to support crossings and corridors everywhere.

In the northeastern part of India, the greater adjutant stork has been considered an ill omen for generations, and the endangered bird has paid the price. Its breeding population here fell to just 115 birds by the 1990s.

In Madhya Pradesh, renowned as India’s “tiger state,” a team installs AI-integrated camera traps to reduce conflict and safeguard lives in a vital wildlife corridor home to 2 million people – and 300 wild tigers that have caused an increasing number of problems for locals.

Along the coast of Gujarat, India, a renowned spiritual leader is inspiring fishermen to become guardians of the world’s biggest fish: the endangered whale shark.

Elephant migration corridors in India are a necessary thoroughfare for one of the planet’s largest animals — but when conflicts with human residents along these routes caught the attention of the Wildlife Trust of India, the solution became a massive undertaking: relocate an entire village.

Pangolins are amazing, bizarre, adorable creatures, but due to the demand for their scales on the illegal market, they’re also the most trafficked animal in the world. In order to turn the tide, wildlife veterinarian Elias Mubobo knows the solution rests in the hands of the local community — many of whom have never seen a pangolin in the wild.

Economic growth and wildlife conservation often run in conflict, but Mozambican scientist Cesária Huo hopes to support a new fully sustainable and economically viable model for harvesting a potent natural resource: bat guano.

It was a late-career epiphany that led “wacky genius” Pat Brown to abandon his academic career and commit himself to fighting global warming and biodiversity collapse. He did it, against all odds, by developing a surprising product: the revolutionary and delicious plant-based Impossible Burger.

Millions of birds pass through our yards during their bi-annual migrations, but they face an invisible killer along the way: glass windows. In the US alone, an estimated one billion birds die each year when they collide with windows. Now, two organizations help pave the way to a bird-friendly future.

Over 150 years after suffering the worst massacre in U.S. history, the Northwestern Band of the Shoshone Nation has purchased their ancestral homeland — called Wuda Ogwa, or Bear River — with a vision to return it back to nature.

Following the path of the condor, whose ten-foot wingspan enables it to soar effortlessly over the peaks of the Andes mountains, this film starts at the storm beaten rocks of Cape Horn at the southern tip of South America and journeys north to the highest peak in the Americas - Aconcagua. Along the way, we see exotic animals and birds such as the penguin, hummingbird, sea otter, guanaco, ostrich-like rhea, and puma.

While the cold waters of the Pacific Coast of South America are among the richest in the world, the shore is the driest desert in the world. Yet it is not at all devoid of life. Lizards snatch morsels from the waves, and seagulls fly 40 miles into the desert to nest. The condor searches for carrion and vampire bats feed on the blood of sleeping sea lions. This is a beautiful portrait of a giant land.

The third part of the series is a spectacular visual trip down the fabled river. From the snow-clad summit of the volcano Cotopaxi and others comes the greatest river in the world as melting ice creates a torrent that drops three miles in its first short distance. The river is fed by magnificent waterfalls and is channeled through gorges out into the tropical rain forest where there are more species of birds than anywhere.

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