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How plants communicate with each other

How do plants speak to each other? Biologists at the universites of Neuchâtel and Lausanne are trying to find out. They are also studying how plants defend themselves against animals. It seems that chemical and electrical signals are nature's main tools. (RTS, swissinfo.ch)

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SWI swissinfo.ch - a branch of Swiss Broadcasting Corporation SRG SSR

SWI swissinfo.ch - a branch of Swiss Broadcasting Corporation SRG SSR