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Other Minds: The Octopus, the Sea, and the Deep Origins of Consciousness

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Although mammals and birds are widely regarded as the smartest creatures on earth, it has lately become clear that a very distant branch of the tree of life has also sprouted higher intelligence: the cephalopods, consisting of the squid, the cuttlefish, and above all the octopus. In captivity, octopuses have been known to identify individual human keepers, raid neighboring tanks for food, turn off lightbulbs by spouting jets of water, plug drains, and make daring escapes. How is it that a creature with such gifts evolved through an evolutionary lineage so radically distant from our own? What does it mean that evolution built minds not once but at least twice? The octopus is the closest we will come to meeting an intelligent alien. What can we learn from the encounter?

In Other Minds, Peter Godfrey-Smith, a distinguished philosopher of science and a skilled scuba diver, tells a bold new story of how subjective experience crept into being—how nature became aware of itself. As Godfrey-Smith stresses, it is a story that largely occurs in the ocean, where animals first appeared. Tracking the mind’s fitful development, Godfrey-Smith shows how unruly clumps of seaborne cells began living together and became capable of sensing, acting, and signaling. As these primitive organisms became more entangled with others, they grew more complicated. The first nervous systems evolved, probably in ancient relatives of jellyfish; later on, the cephalopods, which began as inconspicuous mollusks, abandoned their shells and rose above the ocean floor, searching for prey and acquiring the greater intelligence needed to do so. Taking an independent route, mammals and birds later began their own evolutionary journeys.

But what kind of intelligence do cephalopods possess? Drawing on the latest scientific research and his own scuba-diving adventures, Godfrey-Smith probes the many mysteries that surround the lineage. How did the octopus, a solitary creature with little social life, become so smart? What is it like to have eight tentacles that are so packed with neurons that they virtually “think for themselves”? What happens when some octopuses abandon their hermit-like ways and congregate, as they do in a unique location off the coast of Australia?

By tracing the question of inner life back to its roots and comparing human beings with our most remarkable animal relatives, Godfrey-Smith casts crucial new light on the octopus mind—and on our own.

271 pages, Kindle Edition

First published December 6, 2016

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About the author

Peter Godfrey-Smith

14 books498 followers
I am currently Distinguished Professor of Philosophy at the Graduate Center, CUNY (City University of New York), and Professor of History and Philosophy of Science (half-time) at the University of Sydney.

I grew up in Sydney, Australia. My undergraduate degree is from the University of Sydney, and I have a PhD in philosophy from UC San Diego. I taught at Stanford University between 1991 and 2003, and then combined a half-time post at the Australian National University and a visiting position at Harvard for a few years. I moved to Harvard full-time and was Professor there from 2006 to 2011, before coming to the CUNY Graduate Center. I took up a half-time position in the HPS program at the University of Sydney in 2015.

My main research interests are in the philosophy of biology and the philosophy of mind. I also work on pragmatism (especially John Dewey), general philosophy of science, and some parts of metaphysics and epistemology. I’ve written four books, Complexity and the Function of Mind in Nature (Cambridge, 1996), Theory and Reality: An Introduction to the Philosophy of Science (Chicago, 2003), Darwinian Populations and Natural Selection (Oxford, 2009), which won the 2010 Lakatos Award, and Philosophy of Biology, released in 2014 by Princeton.

My photos and videos have appeared in the New York Times, National Geographic, Boston Globe, Boston Review, and elsewhere.

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