The effect of caffeine on spider web construction.

Photographs from Time-Life Books' Life Nature Library 'Animal Behaviour' copyright 1965 revised 1969 by Time Inc. Pages 104 and 105 illustrating work by pharmacologist Peter Witt showing the effects of caffeine and lysergic acid on the spider's making of it webs.

Modified version of original image from:

Noever, R., J. Cronise, and R. A. Relwani. 1995. Using spider-web patterns to determine toxicity. NASA Tech Briefs 19(4):82. Published in New Scientist magazine, 29 April 1995.

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• Image:Caffeinated spiderwebs.jpg