Explore the Amazon rainforest’s flying rivers, and dig into why these invisible waterways are essential to life on Earth.

Brazil nuts are one of the most sustainable nuts. They're not grown on farms. They're collected in the rainforest after they drop naturally off wild trees. While the nuts support Indigenous tribes' livelihoods, collectors have a tough job.

Rare footage of a Philippine eagle family shows parents intensively caring for a single eaglet, and the fledgling learning to fly, over the course of five months.

Among the Earth's ecosystems, they support the largest range of plant and animal species, are home to most isolated indigenous groups, and drive the most powerful rivers.