Talking trees

Print edition : February 03, 2017

Four decades ago, scientists noticed that umbrella thorn acacias on the African savannah pumped toxic substances into their leaves to stop giraffes from feeding on them. The trees also alerted other acacia trees in the vicinity about the threat. Here, a giraffe near acacia trees in Nairobi National Park, Kenya, in November 2016. Photo: Ben Curtis/AP

Beech trees in a forest in the Bieszczady mountains in Poland. Photo: Kacper Pempel /REUTERS

In describing how trees communicate and have a sense of community and feelings, the book brings soul back to science without making anyone feel sentimental or squeamish about the word and its associations.
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