bison=tires, who knew?

There's an interesting story out of the University of Arizona about the use of old tires to simulate bison at jump sites. Actually, I remain unconvinced that tires are a very good stand-in for bison, but I'm not sure it matters. What's more interesting about the story is the work being done on fire history in the region, and how fires to drive bison and to clean the hunting site may have impacted the local environment. I'll be looking forward to the publications.