Spiders on drugs

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Natural insecticides alone or in combination with other compounds, may be useful in insect control. Zoologist H. M. Peters perturbed by the webs of garden spiders in the early morning asked colleague Dr. Peter Witt to do research on what effects various chemicals have on spiders and their webs.

Witt tested spiders with a range of psychoactive drugs, including amphetamine, marijuana, alcohol, LSD and caffeine, and found that the drugs affect the size and shape of the web rather than the time when it is built. The more toxic the chemical, the more deformed the web.

NASA researchers think that with help from a computer program, spiders could replace other animals in testing the toxicity of chemicals.

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