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Zooplankton in the Eye of a Needle

Zooplankton are small—but do you know just how small? This drop of water smaller than the eye of a needle is magnified 20x and contains multitudes.
Peter Parks / Nikon Small World

Zooplankton are small—but do you know just how small? This drop of water smaller than the eye of a needle is magnified 20x and contains multitudes. This image took 5th place in the 2007 Nikon Small World photomicrography contest