STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Foraminiferan, coloured scanning electron micrograph (SEM) of Spirillina (Family: Spirillinidae). Foraminifera are marine single-celled marine protozoa that construct and inhabit a calcium carbonate shell composed of several chambers. These are usually penetrated by pores through which the cellular content is extruded to catch their prey. Magnification: x800 when printed at 10 centimetres wide.
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