Elk, among thousands, that congregate unnaturally in winter over artificial alfalfa pellets at the National Elk Refuge in Jackson Hole. Disease experts say it's the perfect set up for setting off an outbreak of Chronic Wasting Disease. Photo courtesy US Fish and Wildlife Service
Elk, among thousands, that congregate unnaturally in winter over artificial alfalfa pellets at the National Elk Refuge in Jackson Hole. Disease experts say it's the perfect set up for setting off an outbreak of Chronic Wasting Disease. Photo courtesy US Fish and Wildlife Service