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Commentary on octopus – ancient, intelligent, and possessing five hundred million neurons

Why Not Eat Octopus – Silvia Killingsworth – “The cephalopod—a spelling-bee favorite, from the Greek kephalē, for “head,” and pous or pod, for “foot,” by way of modern Latin—has been around for hundreds of millions of years. Evolutionarily speaking, it is far more distant from humans than the animals we tend to have moral quandaries about consuming. In characterizing the octopus, the CUNY biology professor Peter Godfrey-Smith has used language very similar to that of Lerner’s narrator: “It’s probably the closest we’ll get to meeting an intelligent alien.” With their ovoid, head-like mantles, octopuses even look the part. They have relatively large brains, three hearts, and a decentralized nervous system that confers incredible motor dexterity—and they can squeeze through any opening larger than their beaks. They’ve been observed to “walk” on the ocean floor and even dry land. They have remained inscrutable in part by being notoriously difficult lab animals. There are stories of them unplugging drains, disconnecting wires, and resisting the maze challenge. They are known to possess around five hundred million neurons—which is not such an impressive number when compared with the eighty-six billion in the human brain, but is notable for the fact that more than half of them are located in the animal’s arms. I like to think of an octopus as a blobby, eight-fingered hand, but with a mind of its own and the uncanny ability to change color, size, shape, and texture. And then I’m suddenly not so keen on the idea of eating it.”

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