Among the more than 300 hummingbird species dazzling the skies of the Americas, some stand out with exceptional elegance and ...

There's been a lot of people wondering about a possible volcanic eruption at Yellowstone National Park. Let's talk about it.

A National Park Service spokesperson said animals are not leaving Yellowstone in large numbers, and a volcanic eruption is thousands of years away.

Gray wolves were reintroduced in Yellowstone National Park in 1995 to help control the numbers of elk that were eating young ...

Here are 20 striking wildlife images, candidates for the People’s Choice Award of the BigPicture Nature World Photography ...

According to Yellowstone Park's safety rules, you should always stay at least 100 yards away from bears, wolves, and cougars ...