IMAGES: Protozoans on Parade

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Science  10 Sep 2004:
Vol. 305, Issue 5690, pp. 1543
DOI: 10.1126/science.305.5690.1543c

Protist Image Data, hosted by the University of Montreal in Canada, holds information for everyone from students studying classification of algae to researchers hoping to cultivate parasitic amoebas. Visitors can explore the biology of some 20 genera of protozoa and algae, such as the ocean-dwelling photosynthesizer Halosphaera. An introductory page puts each group in evolutionary context. From there, you can study close-ups that delineate internal and external structures of the cells, get the latest on taxonomy and classification, or read about the creatures' form of reproduction (for Halosphaera, it's asexual). The site also lists sources that provide cultures of the organisms.

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