Emiliania_huxleyi_coccolithophore_(PLoS)
Emiliania huxleyi (coccoliths) – single-celled marine phytoplankton that produce calcium carbonate scales. Image by Alison R. Taylor (University of North Carolina Wilmington Microscopy Facility) (PLoS Biology, June 2011) licenced under a Creative Commons licence, [CC BY 2.5] http://creativecommons.org/licenses/by/2.5), via Wikimedia Commons. https://commons.wikimedia.org/wiki/File%3AEmiliania_huxleyi_coccolithophore_(PLoS).png