Justin Sullivan/Getty Images
A herd of wild horses galloping.
The American west is knowns for wide open plains where buffalo once roamed and where wild horses still run free. It sounds idyllic, but there is such a thing as too many wild horses.
Wild horses are destroying native rangelands and in many cases are more nuisance than western icon. Montana State University 's Robert Garrott co-wrote a paper outlining the dilemma of managing these wild horse populations.