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 ...

Misty Reflections, Yosemite National Park, California

Misty Reflections, Yosemite National Park, California

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Lower Klamath Lake National Wildlife Refuge

Lower Klamath Lake National Wildlife Refuge

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Cloudscape, Vancouver, British Columbia

Cloudscape, Vancouver, British Columbia

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Sunset Splash, Seal Rock, Oregon

Sunset Splash, Seal Rock, Oregon

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Indian Peaks Wilderness, Roosevelt National Forest, Colorado

Indian Peaks Wilderness, Roosevelt National Forest, Colorado

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Autumn Color, Coquille River, Oregon

Autumn Color, Coquille River, Oregon

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Dry Heat Hits Monument Valley, Utah

Dry Heat Hits Monument Valley, Utah

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Lava Flow from Kilauea Volcano, Hawaii

Lava Flow from Kilauea Volcano, Hawaii

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Light Inside, Slot Canyons of the American Southwest

Light Inside, Slot Canyons of the American Southwest

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Waterfall in Starved Rock State Park, Illinois

Waterfall in Starved Rock State Park, Illinois

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Winter Sunlight Through Snowy Branches

Winter Sunlight Through Snowy Branches

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Aerial View of Niagara Falls, Ontario, Canada

Aerial View of Niagara Falls, Ontario, Canada

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Lenticular Clouds Over Mount Drum, Alaska

Lenticular Clouds Over Mount Drum, Alaska

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Natural Bridge, Pickett State Park, Tennessee

Natural Bridge, Pickett State Park, Tennessee

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Purple Haze over Lake Crescent, Olympic National Park

Purple Haze over Lake Crescent, Olympic National Park

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