American Bison posing in early morning light in Yellowstone National Park Wyoming.
Caribou herd crossing the Thelon River in Northwest Territories Canada.
Buck whitetail deer posing in fall color in Cades Cove in Great Smoky Mountains National Park Tennessee.
Caribou grazing in Denal National Park Alaska.
Coyote sneaking up on an unsuspecting videographer in Yellowstone National Park Wyoming.
Bull elk bugling in Hayden Valley in Yellowstone National Park Wyoming.
Bull elk with frost on its back posing at sunrise in Gibbon Meadows in Yellowstone National Park Wyoming.
Fawn elk resting in Gibbon Meadows in Yellowstone National Park Wyoming.
Bull elk crossing the Madison River at sunrise in Yellowstone National Park Wyoming.
Bull Elk walking in deep snow in Yellowstone National Park Wyoming.
Blue phase Arctic Fox kit posing in a bed of lupines on St. George part of the Pribilof Islands Alaska.
Arctic fox feeding on the remains of a caribou that was killed during the night by a pack of wolves during the night on Fletcher Lake in Wapusk National Park, Manitoba, Canada
Arctic fox carrying a large piece of caribou meat scavanged from a wolf kill site on Fletcher Lake in Wapusk National Park, Manitoba, Canada
Nanny mountain goat with her kid pose against the blue sky on top of a boulder on Mount Evans Colorado.
This curious lynx was spotted behind a snowdrift along a snowmobile trail in northern British Columbia, Canada.
