Nassula protozoan. Differential interference contrast micrograph of a Nassula ornata ciliate protozoan, with ingested blue-green algae (cyanobacteria)

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Nassula protozoan. Differential interference contrast micrograph of a Nassula ornata ciliate protozoan, with ingested blue-green algae (cyanobacteria) enclosed in food vacuoles (coloured circles) inside. These protozoa are known as ciliates because they propel themselves through the water by beating tiny hair-like structures called cilia. Magnification: x180 when printed 10 centimetres wide.

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Size: 4808px × 3633px
Photo credit: © GERD GUENTHER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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