Here’s a more detailed description for those that like to read up: https://rarehistoricalphotos.com/nasa-spiders-drugs-experiment/
Curiously enough when a similar experiment was first performed decades earlier the original intent was to get the spiders to weave their webs during different times of the day, rather than alter the pattern.
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Even in minute amounts. It’s the whole reason plants started producing caffeine. But you have also run into the big flaw in this, what is the portion they are using?