 Bison keeping an eye on things in the Lamar Valley of Yellowstone National Park |
 Mountain dwelling Pika in the Golden Gate area of Yellowstone National Park |
 Pika found in a limestone jumble in the mountains of Yellowstone National Park |
 Pronghorn Antelope in the Lamar Valley of Yellowstone National Park |
 Bison on a ridge above the Lamar Valley in Yellowstone National Park |
 Geese reflected in a Hayden Valley pond in Yellowstone National Park |
 Bison grazing in the Lamar Valley of Yellowstone National Park |
 Black Bear passing through the Tower Fall area in Yellowstone National Park |
 Flock of Pelicans feasting in the Yellowstone River in the Hayden Valley of Yellowstone National Park |
 Male and female Bison grazing along the Madison River in Yellowstone National Park |
 Bison heading toward the hills of the Lamar Valley in Yellowstone National Park |
 Squirrel munching on a pinecone at the Norris Geyser Basin in Yellowstone National Park |
 Bison with no place in particular to go holding up traffic in the Hayden Valley of Yellowstone National Park |
 Sandhill Crane in a field on the east side of Yellowstone National Park |
 Lilly Pad flower on Isa Lake on the Continental Divide in Yellowstone National Park |
 Isa Lake covered by Lilly Pads on the Continental Divide in Yellowstone National Park |
 A Leech in the waters of Isa Lake in Yellowstone National Park |
 Lilly Pad flower on Isa Lake in Yellowstone National Park |
 Insect of unknown origin swimming in Isa Lake in Yellowstone National Park |
 Lilly Pad flowers reflected in Isa Lake in Yellowstone National Park |
 Dragonfly on a stick at Isa Lake in Yellowstone National Park |
 Grizzly Bear siting on a camouflaged elk carcass in the Hayden Valley of Yellowstone National Park |
 Grizzly Bear guarding an elk kill in the Hayden Valley of Yellowstone National Park |
 Grizzly Bear feeding on an elk carcass in the Hayden Valley of Yellowstone National Park |
 A second smaller Grizzly in the Hayden Valley of Yellowstone National Park |
 A “Bison Jam” in the Lamar Valley of Yellowstone National Park |
 Coyote near the Lower Geyser Basin in Yellowstone National Park |
 Leaping Coyote goes after prey near the Lower Geyser Basin in Yellowstone National Park |
 Mother and baby Canadian Geese reflected in a Hayden Valley pond of Yellowstone National Park |
 Baby Canadian Goose on the edge of a Hayden Valley pond in Yellowstone National Park |
 Ducks on the Madison River in Yellowstone National Park |
 Tiny Chipmunk along the Blacktail Plateau Drive in Yellowstone National Park |
 French Girl (Eiffel-Spectacularus of the Pretentiousness-Period) in the Norris Geyser Basin in Yellowstone National Park |
 Wolf in the Lamar Valley in Yellowstone National Park |
 Wolf running across the Lamar Valley of Yellowstone National Park |
 Bison sleeping near the Sulphur Caldron in Yellowstone National Park |
 Swans standing in the Yellowstone River in the Hayden Valley of Yellowstone National Park |
 Swans strike a pose in the Yellowstone River in the Hayden Valley of Yellowstone National Park |
 Swans, reprising a scene in a Disney movie, in the Yellowstone River in the Hayden Valley of Yellowstone National Park |
 A Raven on a pullout fence in the Hayden Valley of Yellowstone National Park |
 Herd of Bison in the Lamar Valley of Yellowstone National Park |
 Baby Ducks in a Hayden Valley pond in Yellowstone National Park |
 Bison with the Lamar Valley as a backdrop in Yellowstone National Park |
 Killdeer on the shore of Yellowstone Lake at West Thumb Geyser Basin in Yellowstone National Park |
 Duck on the Yellowstone River near the Sulphur Caldron in Yellowstone National Park |