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 ...

Gorgonian, Bonaire, Dutch Caribbean

Gorgonian, Bonaire, Dutch Caribbean

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Golden Trees in the Snow, Tesuque Basin, New Mexico

Golden Trees in the Snow, Tesuque Basin, New Mexico

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Picture Peak, Sierra Nevada, California

Picture Peak, Sierra Nevada, California

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Lower Falls, Yellowstone National Park

Lower Falls, Yellowstone National Park

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Carmel Coast Sunset, California

Carmel Coast Sunset, California

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Moonset over Hood Canal, Olympic Mountains, Seabeck

Moonset over Hood Canal, Olympic Mountains, Seabeck

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Golden Sun, Lonely Tree at Sunset

Golden Sun, Lonely Tree at Sunset

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Mount McKinley, Denali National Park, Alaska

Mount McKinley, Denali National Park, Alaska

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La Reunion Island, Lava Flow, December 1975

La Reunion Island, Lava Flow, December 1975

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Mount Adams, Yakima Indian Reservation, Washington

Mount Adams, Yakima Indian Reservation, Washington

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Grand Teton National Park, Wyoming

Grand Teton National Park, Wyoming

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Cades Cove, Great Smoky Mountains National Park

Cades Cove, Great Smoky Mountains National Park

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Rushing Waters, South Georgia Island

Rushing Waters, South Georgia Island

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Mouse Creek Falls in Winter, Great Smoky Mts

Mouse Creek Falls in Winter, Great Smoky Mts

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Mount Shuksan, North Cascades, Washington

Mount Shuksan, North Cascades, Washington

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