The oldest national park in the US has a variety of landscapes and habitats, meaning there is the potential for a plethora of wildlife as well. In fact, Yellowstone is home to 67 species of ...

At its birth in 1872, Yellowstone National Park was viewed in great part as an oversize zoo, its diverse animals managed like captives in a menagerie. But in the decades since, much has changed.

Scientists have long been mystified about how animals who munch on plants in Yellowstone National Park all get enough food to eat. Animals all living in the same habitat and eating the same foods ...

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 ...

It was known as the "Act to Protect the Birds and Animals in Yellowstone National Park." When Horace Albright was appointed superintendent of Yellowstone in 1919, he dedicated himself to expanding ...