Two three-month-old polar bear cubs playing near their den in Wapusk National Park south of Churchill Manitoba Canada near the Hudson Bay.
Two bull moose sparing Anchorage Alaska.
Grizzly bear silhouette at sunrise walking across a dew-covered field in Lake Clark National Park Alaska.
Grizzly bear carefully balanced on a boulder above the waters of the Nakina River in British Columbia Canada waits for a salmon to swim past.
Warm light at sunset accentuates the the colors of the layers in Badlands National Park South Dakota.
Cape buffalo with an aggressive expression on his face Serengeti National Park Tanzania.
Grizzly bear scratches its back on a tree near the Nakina River in British Columbia Canada.
View of fall color from the park road near the park entrance Danali National Park Alaska.
Caribou with antlers covered in velvet posing in Denali National Park Alaska.
Caribou grazing in Denal National Park Alaska.
Fall color of larch trees at the base of Cinque Torri before sunset.
Ash Cave in the Hocking Hills State Park photographed from inside the cave using a fisheye lens.
Aurora in Alaska night sky near Fairbanks with lit cabin in foreground.
Polar Bear standing on the pack ice in the Arctic Ocean near Svalbard.
Panoramic image of the Milky Way with Broken Arch in Arches National Park near Moab Utah.
Muskox posing in fall tundra near the Dalton Highway in Alaska.
