Black bear close-up.

Black bear sow with cub.

A bluejay that followed us up the trail from Tower Fall.

A bison grazing alone.

Curious little chipmunk.

Deer waiting to cross the road.

A skirmish between a goose and an elk. (Goose 1, elk 0!)

Elk in Mammoth Hot Springs.

A grizzly bear lying along the shore of the Yellowstone River after feeding on the elk lying in the water.

Geese along the river in Jackson Hole.

A moose getting some rest.

This wolf is standing upstream from the grizzly in the photo above. He kept trying to sneak closer to the bear's meal.