The Rio Grande is one of North America’s great rivers, flowing nearly 1,900 miles from southern Colorado through New Mexico and along the Texas-Mexico ...

Tropical rainforests regulate the global climate and sustain the planet’s richest biodiversity. Yet, despite more than a decade of government and ...

Discover the secrets of the Titanoboa - the largest snake to ever live.

Dr. Carlos Jaramillo of the Smithsonian Tropical Research Institute shares the incredible story of the Titanoboa, a colossal snake that lived 60 million years ago. He explains how its fossils were ...

In 1893, a bounty hunter named Ernest Thompson Seton journeyed to the untamed canyons of New Mexico on a mission to kill a dangerous outlaw. Feared by ranchers throughout the region, the outlaw wasn’t ...

Travel back in time, from the Arctic Ocean to Pacific tide pools, with a pioneering group of scientists who make surprising discoveries that transform human understanding of nature and ecology. Based ...

As humans learn more about animal intelligence, we also are discovering that animals have a lot to teach us. Those lessons are the provocative subject of Wisdom of the Wild. In a Tanzanian jungle, a ...

Watch the drama unfold as Cloud struggles to keep his family intact in the face of challenges both natural and man made. In 1995, while filming wild horses in the mountains of Montana, Ginger Kathrens ...

The Alps are the highest and most extensive mountain range system that lie in south-central Europe. The mountain range stretches approximately 750 miles (1,200 kilometers) in a crescent shape across ...

Eels can be found all over the globe, in fresh and salt water ecosystems alike. But today, risk of over-fishing and the presence of dams and other obstacles that prevent eels from reaching their ...