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 ...

Southern Oregon Pacific Ocean Cliffs, Blacklock Point

Southern Oregon Pacific Ocean Cliffs, Blacklock Point

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Three Patriarchs, Zion National Park, Utah

Three Patriarchs, Zion National Park, Utah

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Rope Swing Memories, Near Petaluma, California

Rope Swing Memories, Near Petaluma, California

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Dunes at Dawn, Destin, Florida

Dunes at Dawn, Destin, Florida

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Waterfall, Willamette National Forest, Oregon

Waterfall, Willamette National Forest, Oregon

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Reaching Through the Giant Forest, California

Reaching Through the Giant Forest, California

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Kepler Track, South Island, New Zealand

Kepler Track, South Island, New Zealand

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Rutledge Falls, Coffee County, Tennessee

Rutledge Falls, Coffee County, Tennessee

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Hills Creek Waterfall

Hills Creek Waterfall

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Aspen Leaves, Eastern Sierra, California

Aspen Leaves, Eastern Sierra, California

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Lamar Valley Sunset Rainbow, Yellowstone National Park, Montana

Lamar Valley Sunset Rainbow, Yellowstone National Park, Montana

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Mount Fitzroy, Los Glaciares National Park, Argentina

Mount Fitzroy, Los Glaciares National Park, Argentina

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Moonrise at Mono Lake, California

Moonrise at Mono Lake, California

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Moorea Island Sunset, French Polynesia

Moorea Island Sunset, French Polynesia

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Mt. Baker-Snoqualmie National Forest in Washington

Mt. Baker-Snoqualmie National Forest in Washington

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