LINNEA RUNDGREN / LINEAR IMAGING / SCIENCE PHOTO LIBRARY LINNEA RUNDGREN / LINEAR IMAGING / SCIENCE PHOTO LIBRARY
Coloured scanning electron micrograph (SEM) of a Radiolaria, a fossilised ancient single-cell organism. It was one of the first forms of life on the planet. This specimen was collected off Barbados. Magnification: x1700 when longest axis printed at 297 millimetres.
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