Studies conducted in the last 20 years suggest that the bison population at Yellowstone National Park includes two separate ...

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

Visitors to Lehigh County’s Trexler Nature Preserve can now see the resident bison herd in two separate pastures. County officials in conjunction with the Lehigh Valley Zoo at the preserve announced ...

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

As a single herd, the bison utilized two different pastures in the Trexler Nature Preserve throughout the year. During the winter months, the bison lived in the field just past the elk habitat. In the ...

"To get a clearer picture, we examined samples from the two major summer breeding groups and two major winter ranges ... Yellowstone bison today are clearly one interbreeding herd." ...