The modern American bison (Bison bison) emerged from larger, ancient predecessors approximately five thousand to ten thousand years ago and soon became a truly continental presence, ranging across ...

DESCRIPTION: Slightly smaller in size than other subspecies of the often 12.5-foot long, 6.5-foot tall American bison, the plains bison has a long, shaggy, dark-brown coat; short, backward-arching ...

The national mammal of the U.S., the American bison is the largest terrestrial ... these majestic grazing beasts are still the rulers of their domain; a bison can weigh up to 2,400 pounds and ...

Library of Congress Prints and Photographs Division This Winter, if all goes as planned, a caravan of livestock trucks will carry dozens of American bison out of Yellowstone National Park on a 500 ...

Fermilab rotates the bison bulls every five to seven years to maintain genetic diversity — while ensuring the herd remains as close to full-blooded American bison as possible. Genetic testing in ...