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This is a shot of one of the many thermal pools in Yellowstone National Park.
Yellowstone National Park, WY
Get your own stones!
By Tim Fisher
Gentoo penguin seemingly picking up a tourist.
What's It All About?
By Dawn Nelson
Children ages 6 to 14 can submit shots to our photo contest for kids.
See a new photo every day and download free wallpaper.
Browse photos, download wallpaper, and play puzzles from last year's contest.
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