In this image entitled "Protozoa in Real Time," created in a college biology class, one can see the dynamic, energetic life that abounds in a drop of pond water.

The image was submitted as part of the 2007 International Science & Engineering Visualization Challenge, an effort jointly administered by the National Science Foundation and the journal Science. Winners from the SciViz challenges can be seen at: http://www.nsf.gov/news/special_reports/scivis/index.jsp.

Credit: Caryn Babaian, Bucks Co. Community College, Newtown, PA