Bison spread as Native American tribes reclaim stewardship

There are few symbols more representative of the great plains than the buffalo. Their story is just as evocative. Prior to European expansion west, their numbers were thought to exceed 30 million. A short generation later, the consequences of manifest destiny brought the animals to near extinction. Today, their survival is no longer in doubt, and their role among the plains Native American tribes is being established. Get in-depth coverage from Matthew Brown reporting for the Associated Press.