Nature

The first form of life to develop on the Earth were microbes, and they remained the only form of life until about a billion years ago when multi-cellular organisms began to appear. Microorganisms are single-celled organisms that are generally microscopic, and smaller than ...

Red Mountain, Gunnison National Forest, Colorado

Red Mountain, Gunnison National Forest, Colorado

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Tufa Formations at Sunset, Mono Lake, California

Tufa Formations at Sunset, Mono Lake, California

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Autumn Aspens, Colorado, United States

Autumn Aspens, Colorado, United States

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Sunlight and the Wild Forest Floor

Sunlight and the Wild Forest Floor

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Cape Lookout, Tillamook County, Oregon

Cape Lookout, Tillamook County, Oregon

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Beauty Beyond Borders, Outside Aspen, Colorado

Beauty Beyond Borders, Outside Aspen, Colorado

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Denali National Park Tundra, Alaska

Denali National Park Tundra, Alaska

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Wisconsin River, Ice Age National Scientific Reserve, Wisconsin

Wisconsin River, Ice Age National Scientific Reserve, Wisconsin

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Nakalele Point, Maui, Hawaii

Nakalele Point, Maui, Hawaii

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Torres del Paine, Serrano River, Chile

Torres del Paine, Serrano River, Chile

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The Owengarriff River Cascades, Killarney National Park

The Owengarriff River Cascades, Killarney National Park

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Dawn, Badwater, Death Valley, California

Dawn, Badwater, Death Valley, California

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Great Fountain Geyser, Yellowstone National Park

Great Fountain Geyser, Yellowstone National Park

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Summer Meadow, Nashville, Tennessee

Summer Meadow, Nashville, Tennessee

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Nature Wallpaper Mountain Meets the Moon

Nature Wallpaper Mountain Meets the Moon

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