American Bison foraging for food in the snow in the Lamar Valley Yellowstone National Park Wyoming.
Dall sheep ram posing on a boulder against blue sky on Primrose Ridge in Denali National Park Alaska sky on Primrose Ridge in Denali National Park Alaska.
Caribou herd crossing the Thelon River in Northwest Territories Canada.
Two bull moose sparing Anchorage Alaska.
Caribou with antlers covered in velvet posing in Denali National Park Alaska.
Fawn elk resting in Gibbon Meadows in Yellowstone National Park Wyoming.
Girraffe drinking water at the Chudob Water Hole in Etosha National Park Namibia.
Wildebeest silhouette at sunset in the Serengeti National Park Tanzania.
Bull moose posing Anchorage Alaska.
Two bighorn sheep rams interacting.
Dall sheep ram posing on a boulder against blue sky on Primrose Ridge in Denali National Park Alaska.
Bull elk bugling in Hayden Valley in Yellowstone National Park Wyoming.
American Bison posing in early morning light in Yellowstone National Park Wyoming.
Bull Elk walking in deep snow in Yellowstone National Park Wyoming.
Cow moose posing in a field of fireweed near Kenai Alaska.
Muskox posing in the fall color of the tundra of Northwest Territories Canada.
Motion blur created while wildebeest was running in Serengeti National Park Tanzania.
Muskox posing in fall tundra near the Dalton Highway in Alaska.
Dall sheep lamb nursing on Slope Mountain near the Haul Road in Alaska.
Cow moose eating in a small pond near Wonder Lake in Denali National Park Alaska.
Whitetail fawn running in a field of flowers in Minnesota.
Bull moose in fall tundra near Wonder Lake in Denali National Park Alaska.
