Scientists are raising alarms after a sharp and unexpected decline in wolf populations in Yellowstone National Park, a place long considered one of the greatest conservation success stories in the ...

The footage was posted to Instagram by a wildlife photographer, showing the trio moving through the park in close formation.

Yellowstone National Park is often told as a story of recovery. Wolves returned and then elk changed their behavior. Willows and aspens then rebounded and rivers, it is said, changed course. The ...

After nearly three decades of celebrating the reintroduction of wolves to Yellowstone, scientists now question the extent of their impact on the ecosystem. A new study challenges the widely accepted ...

Add Yahoo as a preferred source to see more of our stories on Google. Wolf in Yellowstone National Park. (JudiLen/E+/Getty Images) Biology teachers around the world commonly introduce their students ...

Add Yahoo as a preferred source to see more of our stories on Google. Wolves and cougars have returned to Yellowstone over the last 50 years after being hunted to near-extinction. . | Credit: (left) ...

In 1995, Yellowstone National Park became the centre of a conservation experiment that would later be celebrated across the world. Fourteen grey wolves were reintroduced after an absence of nearly 70 ...

Wolves usually rely on cooperation to survive. Hunting large prey such as elk typically involves multiple pack members working together to isolate and exhaust an animal. That reality makes one ...