Mountain goats are a fairly recent addition to Yellowstone compared to some of the other animal species that can be found there. They are not native to Yellowstone National Park and have only been ...

Yellowstone is home to some of North America's most iconic wildlife, including the Big Five. Here's what you need to know about these must-see animals.

Photograph by Michael Nichols The comeback of a surprising number of other animals can be linked to Greater Yellowstone’s role as a refugium for species that have been doomed in parts of the ...

When two top predators clash, you might think a grizzly would take the prize, but a pack of wolves won't give up their dinner ...

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park. Find more at natgeo ...

Bison back up. It’s an animal-eat-animal world out there, especially in Yellowstone National Park. There are almost 70 different mammal species in Yellowstone, and most of those can be separated into ...