Bison in Yellowstone National Park spent over 100 years as two genetically distinct herds. But now they're roaming as one interbreeding population, a new study suggests. Herds of wild bison (Bison ...

Frank Bison in Yellowstone National Park spent over 100 years as two genetically distinct herds. But now they're roaming as one interbreeding population, a new study suggests. Herds of wild bison ...

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 ...

SCHNECKSVILLE, Pa. - Lehigh County and the Lehigh Valley Zoo has announced changes to the bison herd to ensure the safety of the bison. Visitors of the Trexler Nature Preserve will now see bison ...

UP CLOSE, the American bison is a primordial-looking creature, an ancient cave painting come to life ... decide that it’s time to move their herd of 800 animals from the family’s ranch ...