Caenorhabditis elegans, a free-living transparent nematode (roundworm), about 1 mm in length.

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Caenorhabditis elegans is a free-living, transparent nematode (roundworm), about 1 mm in length,[2] which lives in temperate soil environments. Research into the molecular and developmental biology of C. elegans was begun in 1974 by Sydney Brenner and it has since been used extensively as a model organism. Confocal laser scanning microscopy image; green: GFP fluorescence in neurons, blue: DAPI fluorescent staining of cell nuclei, red: fluorescently labeled dye in the intestine of the worms.

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Location: Estonia
Photo credit: © Heiti Paves / Alamy / Afripics
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Keywords: animal, bacteria, caenorhabditis, cell, elegans, fluorescence, green, micrograph, microphoto, microscopy, nature, nematode, neuron, roundworm