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 ...

Early Winter Forest Road Scene

Early Winter Forest Road Scene

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Afternoon Nap, Kauai, Hawaii

Afternoon Nap, Kauai, Hawaii

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Kilauea, Hawaii Volcanoes National Park

Kilauea, Hawaii Volcanoes National Park

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Summer Storm, Fork of Lightning Striking a Forest

Summer Storm, Fork of Lightning Striking a Forest

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Mossbrae Falls, Dunsmuir, California

Mossbrae Falls, Dunsmuir, California

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Aspen Trunks, North Woods, Quetico Provincial Park

Aspen Trunks, North Woods, Quetico Provincial Park

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Autumn at Matterhorn Peak, Sawtooth Ridge, Sierra Nevada

Autumn at Matterhorn Peak, Sawtooth Ridge, Sierra Nevada

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Burgess Falls State Natural Area, Sparta, Tennessee

Burgess Falls State Natural Area, Sparta, Tennessee

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Alaska Range, Ruth Amphitheater, Alaska

Alaska Range, Ruth Amphitheater, Alaska

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Yosemite Falls, California, North America

Yosemite Falls, California, North America

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Ballachulish, Western Highlands, Scotland

Ballachulish, Western Highlands, Scotland

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North Shore Beach, Oahu, Hawaii

North Shore Beach, Oahu, Hawaii

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Colorful Ferns in Autumn, Acadia National Park

Colorful Ferns in Autumn, Acadia National Park

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Stormy Weather at Yosemite National Park, California

Stormy Weather at Yosemite National Park, California

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Yellowstone River in Hayden Valley, Wyoming, USA

Yellowstone River in Hayden Valley, Wyoming, USA

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