Review: The Revolutionary Genius of Plants

The Revolutionary Genius of Plants: A New Understanding of Plant Intelligence and BehaviorThe Revolutionary Genius of Plants: A New Understanding of Plant Intelligence and Behavior by Stefano Mancuso

My rating: 5 of 5 stars

Stefano Mancuso, an authority on plant neurobiology, begins by showing how plants can remember things, although they don’t have a brain. They can move, although they have no muscles. They can imitate items in their surroundings like stones or other plants, although we don’t think they can see. It’s clear that plants pay scrupulous attention to their environment. He describes the ways plants do all this in an entertaining and easy-to-understand way.

Then, in Chapter 4, he pulls these abilities together by stressing the differences between plants and animals. Beings that can move (animals) tend to avoid problems. If the sun is too hot, animals try to find shade. If something wants to eat the animal, it runs away. Beings that are rooted in place (plants) have to solve problems. Beings with brains and other central organs can react faster, but that also makes them more vulnerable. Decapitate an animal and it’s dead. Chop off a branch of a tree, and the tree carries on. Beings with dispersed problem-solving abilities may react more slowly, but they’re more resilient.

How can a being with no central intelligence solve complex problems? Mancuso suggests that plants act more like flocks of birds: each part, each cell, reacts to its environment, and the changes in the cell and changes in the environment affect the other parts of the plant around it. Together, the plant acts as a coordinated whole. He offers several ways for decentralized intelligence to work in order to reach what looks to us like a decision.

He goes on to describe the ways that plants manipulate animals, the lessons we can learn from plants in fields like architecture and robotic design, and how plants respond to weightlessness.

I received this book as a gift, and I lingered over the stunning photos. Plants are beautiful, and the presence of plants seems to soothe human beings.

Most of all, Mancuso’s love for plants permeates the text – and his respect for them. By weight, the vast majority of life on Earth is plants. They are master problem-solvers, he says, and we can learn from them how to solve some of our own problems.

— Sue Burke

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