A new study has unveiled the far-reaching ecological impact of wolves and other large carnivores in Yellowstone National Park ...

Tracking the northern pygmy owl in Yellowstone – small, fierce, and fascinating. Discover this tiny predator’s hunting skills ...

A new study reveals the profound ecological effects of wolves and other large carnivores in Yellowstone National Park, ...

Methane flares scorching birds at U.S. landfills It All Started With a Few Trout. Now Yellowstone’s Iconic Birds Face ‘Collapse.' Environment Year of the Bird It All Started With a Few Trout.

There are flecks of gold that flutter into Yellowstone National Park each spring. The tiny Wilson’s warbler, with its bright yellow feathers, weighs less than half an ounce with a wingspan ...

Those who want to learn about Yellowstone wildlife in a more controlled ... visitors will find river otters, along with birds of prey, including bald eagles, a peregrine falcon and several species ...

And for great grey owls, it is the iciness of the snow that is hampering their hunts. Yellowstone's winter is always one of the most brutal on the planet. But 2016 saw weather records broken ...