A new study shows how wolves steal kills from cougars in Yellowstone, driving an uneven feeding rivalry and changing cougar ...

Aspen trees have seen better days, but gray wolves are helping them out. Yellowstone National Park isn't just home to geysers like Old Faithful. There's also plenty of wildlife, from the Yellowstone ...

After decades of decline, the aspen forests of northern Yellowstone are finally making a comeback, and believe it or not, it’s all thanks to the return of certain carnivores. A new long-term study has ...

Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in the Yellowstone ecosystem. When you purchase through links on our site, we ...

Add Yahoo as a preferred source to see more of our stories on Google. On four separate occasions, Wolf 907F seized power as the alpha female leader of the Junction Butte Pack in Yellowstone National ...