An annelid (segmented worm) wriggles through algae in this sample of pond water seen under a COSI microscope. A cladoceran (water flea) swims rapidly past the lens. Taken through a Ken-A-Vision digital microscope and edited with iMovie. COSI is Columbus, Ohio's dynamic hands-on Center of Science and Industry. For more information, please visit www.cosi.org.
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