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50.0 MB (8.6 MB compressed)
3402 x 5136 pixels
28.7 x 43.4 cm ⏐ 11.3 x 17.1 in (300dpi)
MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Vorticella protozoa. Polarised light micrograph of Vorticella sp. ciliate protozoa. Vorticella are sessile, meaning they attach to a surface and cannot move around on their own. When disturbed, they contract their stalk into a tight coil. This contraction is one of the fastest known actions in the animal kingdom. Magnification: x200 when printed 10 centimetres wide.
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