A tour group watched a pack of wolves unsuccessfully try to take down a bison in Yellowstone National Park this past weekend.

It's eat or be eaten in Yellowstone National Park. The wildlife of the iconic park can broadly be categorized as prey and predators. Among the approximately 70 different mammal species, those that ...

Once the bear reached the area where the wolves were, the wolves must’ve smelled him ... then all chaos broke out.” ...

Add Yahoo as a preferred source to see more of our stories on Google. A tour guide and his client this week witnessed an extraordinary scene involving wolves chasing two elk for 3-plus miles in ...

When a wolf, one of Yellowstone's fiercest predators, sets its eyes on a prey, it can go to any lengths, literally. For a tour guide and their client, the day started as a usual wildlife outing until ...