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A Nilgai Pair in Their Natural Habitat
The U.S. Air Force's F-16D Automatic Collision Avoidance Technology (ACAT) aircraft cruises during a flight originating from NASA's Dryden Flight Research Center, 2009-03-29.
Cows resting on a grassy hill with a cloudy sky. Two cows lie in the foreground, with a mountain visible in the background. Vintage nature artwork, old nature illustration.
Bull Elk During the Rut in Autumn in Colorado
American Pit Bull Terrier playing on the field.

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