Last Word
How was rhubarb found to be edible when it isn’t palatable raw?
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Last word
New Scientist's popular Last Word series gives readers the opportunity to answer each other's questions about everyday science phenomena, from the shape of scones to the evolutionary history of toenails. To answer a question or ask a new one, email lastword@newscientist.com
Issue no. 3432 published 1 April 2023
