More than 100 years after bison from other regions were introduced to the park, the two genetically distinct herds have ...

After more than a century of conservation efforts, researchers have discovered that the bison in Yellowstone National Park ...

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With a dense coat, a powerful mass of muscle and a large head ideally suited for clearing away snow and locating buried grass, bison are built for frigid conditions in Yellowstone.

The hearing comes as the park’s wild bison are once again being captured by the National Park Service and shipped to ...

A pack of wolves took down a bison in Yellowstone National Park and attracted a crowd of people — that the rest of the bison herd then charged into. Wildlife photographer Jeff Vanuga captured a ...