If it wasn’t for a hidden herd in the deepest reaches of this National Park, bison would have been wiped out in the late 1800s. Today, thousands of them thrive. Skip to main content ...

Although elk infected with brucellosis freely roam southwestern Montana and have been responsible for infecting cattle with the disease, “bison in Yellowstone present a much higher, much more ...

The total number of bison in a herd can range from about 20 during the winter to an average of about 200 in the summer, the NPS says. They are mostly active during the day and at dusk. Saman ...