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A photographer's strobe gives a violet sheen to this translucent juvenile roundbelly cowfish off the coast of Kona, Hawaii. Also known as the transparent boxfish, the roundbelly cowfish has two short horns in front of its eyes.
Out of 12,000 entries received, find out who takes home the Grand Prize!
Eighteen percent of the world's population can't get safe drinking water. Test your water knowledge.
When making long exposures, use a remote release to avoid camera movement. If you don't have a remote release, use the camera's self-timer.
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