he buffalo are back! One hundred years after Native American Michael Pablo sent his captive bison herd to Canada to help preserve the dwindling species, dozens of their direct descendants were released into the bison herd on the American Prairie Reserve in northern Montana. The World Wildlife Fund has been collaborating with the American Prairie Reserve to help restore the grasslands habitat for the bison, birds, and other important native species that roamed the region when Lewis and Clark arrived in 1805.