A video taken in Yellowstone National Park shows a lone female wolf competing with two grizzly bears for the rights to a ...

Wolves from Yellowstone were on Lang's property by the ... documenting the appearance of new pups, changes in den sites and interactions with other animals. "Getting to know a wolf pack is like ...

Without wolves, Yellowstone’s ecosystem lost a vital ... The packs established territories, hunted elk, and raised pups in dens hidden among the park’s canyons and forests.

The six pups were born on Earth Day in April to parents Cirilla and Buckeye as part of a preservation program for the species ...

The "Queen of the Wolves" gave birth to a record-breaking 10 litters of pups and survived more than twice as long as most Yellowstone wolves — more than 11 years, compared with the average ...

Recent findings indicate that dire wolves and gray wolves are distantly related, having diverged about 5.7 million years ago ...

Red wolves, which can grow to be about 80 pounds, have been called the most endangered wolf species on Earth. They once lived across parts of the southern and eastern United States but nearly ...

Dire wolves — or really, wolves with traits like the extinct species — are back. But New York has plenty of its own fascinating extinct species.

The reintroduction of the gray wolf to Yellowstone National Park in 1995 ... a female who’d wandered from the park and locate her pups. Or the scene when the crates of the first wolves arrive ...

He describes them as an invasive species because those now inhabiting land in Oregon are descended from Canadian wolves that were released into Yellowstone ... like a cat or a dog,” he said.