Wolves in Yellowstone National Park will sometimes test their predation skills on lone adult bison. But there can be painful ...

The U.S. Fish and Wildlife Service will spend the next year assessing whether to protect Yellowstone bison under the Endangered Species Act — a court-mandated move that could affect recent ...

The incident occurred at Grand Prismatic Spring near Old Faithful as tourists were enjoying a close-up view of the famous and ...

The bison died in the boiling waters of the Grand Prismatic Spring. This happens from time to time, but usually not in front of a crowd.

The animal appeared to stumble into the Grand Prismatic Spring near Old Faithful on June 21 A bison died at Yellowstone National Park ... to be able to see that raw power right in front of my face." ...

Above, a bison wanders the park in Wyoming in August 2011. The bison population at Yellowstone National Park could be culled by as many as 1,000 animals, the park announced this week.

Many would agree that a bison stampede is best observed from a distance, but in Yellowstone National Park it doesn’t always turn out that way. The accompanying footage reveals what a stampede ...

Wild bison will be returning to the U.K. for the first time in 6,000 years, helping secure the future of an endangered species. A £1 million project ($1.25m), funded by the People's Postcode ...

Today, Elk Island keeps a herd of about 400 plains bison and 300 wood bison (a separate, slightly larger subspecies). As the population exceeds those thresholds, the extra animals are offered to ...