Bull elk lose their antlers each March, but they begin to grow them back in May in preparation for the late-summer breeding season.
During the late summer breeding season the bugling of bull elk echoes through the mountains. These powerful animals strip the velvet off their new antlers using them in violent clashes that determine who gets to mate with whom. Males with the bigger antlers, typically older animals, usually win these battles and dominate small herds. Elk were once found across much of North America but they were killed off and driven to take refuge in more remote locations. Today they live primarily in western North America, especially in mountainous landscapes such as Wyoming’s National Elk Refuge and Yellowstone National Park.