IMAGES: Library of Life

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Science  09 Jul 2004:
Vol. 305, Issue 5681, pp. 157
DOI: 10.1126/science.305.5681.157a

Looking for a video demonstrating how to dissect a cat's circulatory system or an animation of the life cycle of the intestinal parasite Giardia? These are just two of the many offerings at Bio-DiTRL, a collection of free media for teachers and students hosted by the University of Alberta in Edmonton, Canada. Contributed by site visitors, the more than 2200 photos, animations, and videos cover fields from microbiology to immunology but emphasize zoology. Students can learn how proteins on immune cells help the body recognize invading pathogens, for instance, or compare the silk-spouting spinnerets of different spiders. Or, see an unlucky tomato hornworm caterpillar studded with the cocoons of parasitic wasps.

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