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Science  21 Apr 2000:
Vol. 288, Issue 5465, pp. 395b-395
DOI: 10.1126/science.288.5465.395b

Vanishing frogs. The alarming decline of many amphibian species in recent decades inspired AmphibiaWeb, a new database. Holding about 140 species accounts so far, the site hopes to eventually include up-to-date status reports on all species of frogs, toads, and salamanders, along with links to taxonomic and museum databases. http://www.amphibiaweb.org/

Caught in the act. Make a computer model of calcium waves sweeping across a neuron, respiration in mitochondria, a disintegrating nuclear envelope, and more with this site's software tools for modeling cell physiological processes. Presented as Java applets, the tools are free to academic users with registration. http://www.nrcam.uchc.edu/

Grassroots science. Created by a software engineer in Seattle, the Science Hobbyist is packed with ideas for science fair projects, fun science links, and minutiae about topics studied by amateur scientists (such as tesla coils). Don't miss the physics for bored commuters page with its analyses of traffic jams. http://www.amasci.com/

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