A look at the tiny organisms called protists. Thousands can be found within a single drop of stagnant water.
National Geographic Society, c/o Educational Services, PO Box 98019, Washington, DC 20090, Phone: (202)857-7378, Toll-free: 800-627-5162, Fax: (202)857-7300, Email: email@example.com/foundation, URL: http://www.nationalgeographic.com/foundation
Running time 12 minutes.
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