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Are trees intelligent? We think of humans as intelligent – maybe animals too. But vegetation? Well, one of the world’s leading tree researchers, Suzanne Simard, insists that trees should be seen as intelligent. They communicate with each other. They help each other. They are even able to distinguish between their offspring and stranger trees. She calls the network of tree communication the wood wide web. And she believes that her discoveries should alter our relationship to trees, woods and forests.

Presenter: David Edmonds
Producer: Ben Cooper

(Photo: US-Fall_Shenandoah, Credit: Getty Images)