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A wildfire causes blight on the land, but it is surprising how quickly plants and animals that depend on them colonize the burned area.

Multiple species of turkeys have been in America for millions of years and it is apparent that, when humans and turkeys met, we have had substantial impacts on their population sizes.

I found the mourning cloak when I was trying to photograph the beavers living at the confluence of the Green and Yampa Rivers.

A defenseless insect can gain protection from predators if it evolves to resemble a well-defended species.

When I arrived at the campground at Deep Lake, I was stunned and disappointed. Instead of meadows bright with flowers, I saw one healthy aster and a paltry, diffuse population of spent flowers.

These are large plants with towers, or racemes, of deep blue to purple flowers that reach heights of 6 feet. They are most spectacular when they grow intermixed with cow parsnip and loveroot.

Elephant's heads are found in subalpine and alpine habitats in western mountains from New Mexico to Alaska and throughout Canada, except for Newfoundland and Nova Scotia.

A wildfire's heat and rising plumes of air cause it to create its own weather, and now we appreciate that the big wildfires send aerosols — both particulates and gases — all the way around the world.

Ornate checkered beetles are bright, conspicuous and tolerant of humans, so they are easily found and fun to watch.

My trip was to be three nights long, combining camping and photography, and I longed for clear air and skies for photography of the Milky Way. But I was beleaguered by smoke. I started at the Railroad Bridge Campground on the Arkansas River near Buena Vista, but as night approached...