The reintroduction of wolves to Yellowstone National Park in the 1990s triggered a remarkable ecological recovery by controlling overpopulated elk herds allowing vegetation to regrow and restoring ...

Snow crunched underfoot as Mark Hebblewhite scanned the ridgelines of Canada’s Banff National Park. It was 1995, and the ...

A biologist turned photographer chronicles the lives of Yellowstone's iconic gray wolves. 4 min read Ronan Donovan is one of six photographers who contributed to National Geographic magazine's ...

But the huge fire of 1988 ultimately produced few large trees. The elimination of Yellowstone's wolves allowed the elk to browse aspens unchecked. Finally, Ripple and Larson decided to look within ...

In March 1995, a few wolves cautiously exited their pens into the melting snow of Yellowstone National Park, returning there ...

The black wolf’s fur was covered with frost from the long, cold night, but it now was howling right in front of us. What a ...

It's white and it's small.'' Grizzly bears and wolves are usually the star attractions for wildlife watchers in Yellowstone but this spring, a tiny and exceedingly rare white buffalo calf has ...

Mark Hebblewhite is a professor of ungulate habitat ecology at the University of Montana. He and the University’s W.A. Franke ...