Credit: PETER MATULAVICH/SCIENCE PHOTO LIBRARY

Caption: Lacrymaria olor, the ''swan'', extends it long neck into pond debris feeding on bacteria and algae. This ciliated protozoan measures about 75 microns when contracted but can reach a length of 200 microns when extended. It is found in ponds, lakes and streams throughout much of the world. Recorded under Nomarski illumination.

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Keywords: alga, animal-like, animallike, bacteria, cells, cilia, eat, feed, freshwater, lacrymaria olor, lacrymaria olor ciliate protozoa, long neck, micro, microorganism, microscopic, organism, pond, protist, single cell, swan, unicelluar

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Lacrymaria olor ciliate protozoa

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