Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

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 ...

Wild wolves, which have disappeared from Japan, still live in Europe, but are in danger of extinction. In a movie posted in 2014 by Sustainable Human, which posts videos about living things, nature, ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...

Yellowstone National Park is home to several wild animals. Tourists are allowed to spot them only from a distance to ensure their safety and the animals' protection. The national park goes above and ...