Not only is the bison one of the most iconic animals in North America, but it's actually the United States' national mammal.

Fifty thousand years ago, North America's landscapes were alive with an astonishing array of enormous creatures. Massive woolly mammoths roamed vast icy plains, while dense forests echoed with the ...

American bison, commonly known as buffalo, once thundered across the prairies of North America — until 1889, when they were ...