By Lyle Lewis Yellowstone National Park is often told as a story of recovery. Wolves returned and then elk changed their ...

Add Yahoo as a preferred source to see more of our stories on Google. The commonly held claim that wolves reintroduced into Yellowstone National Park in the mid-1990s spearheaded a "trophic cascade" ...

Add Yahoo as a preferred source to see more of our stories on Google. Lower Falls in Yellowstone. A new study conducted by researchers at Colorado State University has found that nearly 30 years after ...

New research from Colorado State University is challenging the widely accepted narrative that the reintroduction of wolves into Yellowstone National Park in the mid-1990s resulted in restoring the ...

Ecosystems in the Northwest were heavily shaped by wolves before they were nearly wiped out of the region, a new study finds. By the 1930s, gray wolves were nearly gone in Oregon and the rest of the ...

In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on whether the restoration of wolves has impacted the ecosystem. The idea is ...

On Prince of Wales Island, Alaska, gray wolves are doing something unexpected: hunting sea otters. This surprising dietary shift appears to have notable implications for both ecosystems and wolf ...

In a rare opportunity to study carnivores before and after wolves were reintroduced to their ranges, researchers from the University of Wisconsin–Madison found that the effects of wolves on Isle ...

ESTES PARK, Colorado — Elk graze on neighborhood lawns, golf course greens and the grass around city hall in this gateway town to Rocky Mountain National Park. The burgeoning herd browsing through ...

The world’s largest canine draws both reverence and ire. Here are some of the most common misunderstandings, according to scientists. A young male wolf nicknamed Gray Mane, walks ahead of its pack in ...

A gray wolf at the Wildlife Science Center in Forest Lake, Minn. Colorado is going to be reintroducing gray wolves. (Dawn Villella/Associated Press) Ecosystems in the Northwest were heavily shaped by ...