Life

Life is a characteristic distinguishing physical entities having biological processes (such as signaling and self-sustaining processes) from those that do not, either because such functions have ceased (death), or because they lack such functions and are classified as inanimate. ...

Bath Time, Sea Otter

Bath Time, Sea Otter

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in cat. Animals

Bear Boxing

Bear Boxing

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in cat. Animals

Big Horn Ram and Ewe

Big Horn Ram and Ewe

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in cat. Animals

Bird on Mountain Ash

Bird on Mountain Ash

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in cat. Animals

Blue Dragon

Blue Dragon

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in cat. Flowers

Bow Shock Near a Young Star, Great Nebula in Orion

Bow Shock Near a Young Star, Great Nebula in Orion

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in cat. Space

Calico, Emerald Pools, Zion National Park, Utah

Calico, Emerald Pools, Zion National Park, Utah

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in cat. Nature

Canada Goose Landing

Canada Goose Landing

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in cat. Animals

Canadian Highlands Scenery

Canadian Highlands Scenery

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in cat. Nature

Cape Lookout, Tillamook County, Oregon

Cape Lookout, Tillamook County, Oregon

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in cat. Nature

Caribou in Tundra

Caribou in Tundra

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in cat. Animals

Cathedral Falls, French Broad Falls, West Virginia

Cathedral Falls, French Broad Falls, West Virginia

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in cat. Nature

Cathedral Of St. Etienne, Bourges, France

Cathedral Of St. Etienne, Bourges, France

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in cat. Travel

Cluster of Galaxies in the Distant Cosmos

Cluster of Galaxies in the Distant Cosmos

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in cat. Space

Cologne Cathedral And Hohenzollern Bridge, Cologne, Germany

Cologne Cathedral And Hohenzollern Bridge, Cologne, Germany

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in cat. Travel