Trailers hauling wild bison out of Yellowstone National Park were delayed a few hours Thursday morning when a protester chained himself to a 50-gallon drum in the road leading to ...

The bison quarantine program now has a published study verifying that Yellowstone bison can be certified as disease-free to leave the park.

A recent animal escape led to a debate at Nexstar's KXAN – can you call an American bison a "buffalo"?

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GARDINER, Mont.— Yellowstone National Park plans to start shipping many of its famous wild bison to slaughter Wednesday to drive down the size of the park's herds and respond to concerns by the ...