Leopard resting in tree in Tarangire National Park Tanzania.
Grizzly bear clamming in the Cook Inlet in Lake Clark National Park Alaska.
Herd of elephants running toward a water hole in Etosha National Park Namibia.
Pika on the Savage River trail in Denali National Park posing on a boulder in the fall color.
Grizzly bear cub-of-the-year carefully walking on a log in Lake Clark National Park Alaska.
Male and female lions in Ngorongoro Crater Tanzania.
This Polar Bear Mother with her three-month-old cub exiting their den in Wapusk National Park south of Churchill Manitoba Canada near the Hudson Bay.
American Beaver swimming in the pond behind the Wonder Lake Ranger Station in Denali National Park Alaska.
American Bison foraging for food in the snow in the Lamar Valley Yellowstone National Park Wyoming.