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

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

by Peter Godfrey-Smith
 

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A philosopher dons a wet suit and journeys into the depths of consciousness

Peter Godfrey-Smith is a leading philosopher of science. He is also an accomplished scuba diver whose underwater videos of warring octopuses have attracted wide notice. In this book, he brings his parallel careers together to tell a bold new story of how nature became aware of

Overview

A philosopher dons a wet suit and journeys into the depths of consciousness

Peter Godfrey-Smith is a leading philosopher of science. He is also an accomplished scuba diver whose underwater videos of warring octopuses have attracted wide notice. In this book, he brings his parallel careers together to tell a bold new story of how nature became aware of itself. Mammals and birds are widely seen as the smartest creatures on earth. But one other branch of the tree of life has also sprouted higher intelligence: the cephalopods, consisting of the squid, the cuttlefish, and above all the octopus. New research shows that these marvelous creatures display remarkable gifts, with each of their tentacles even capable of thinking for itself. What does it mean that higher intelligence on earth has evolved not once but twice? And that the mind of the octopus is nonetheless so different from our own? Combining science and philosophy with firsthand accounts of his cephalopod encounters, Godfrey-Smith shows how primitive organisms bobbing in the ocean began sending signals to each other and how these early forms of communication gave rise to the advanced nervous systems that permit cephalopods to change colors and human beings to speak. By tracing the problem of consciousness back to its roots and comparing the human brain to its most alien and perhaps most remarkable animal relative, Godfrey-Smith's Other Minds sheds new light on one of our most abiding mysteries.

Editorial Reviews

The New York Times Book Review - Carl Safina
If this is philosophy, it works, because Godfrey-Smith is a rare philosopher who searches the world for clues. Knowledgeable and curious, he examines, he admires. His explorations are good-natured. He is never dogmatic, yet startlingly incisive. His refreshing guidance invites us, allowing breathing room, to consider, occasionally to respectfully disagree.
Publishers Weekly
09/12/2016
Deftly blending philosophy and evolutionary biology, Godfrey-Smith (Darwinian Populations and Natural Selection), an Australian philosopher of science, uses his passion for cephalopods to address “how consciousness arose from the raw materials found in living beings.” Comparing vertebrate consciousness and intelligence with that of cephalopods is not as odd as it might seem, because “cephalopods are evolution’s only experiment in big brains outside of the vertebrates.” Godfrey-Smith demonstrates that octopuses are constructed from a dramatically different plan than vertebrates, with each of their arms having the ability to act and sense their environment semi-autonomously from their central brains. This striking difference raises intriguing questions about the nature of communication within organisms, as well as about the meaning of intelligence. Godfrey-Smith couples his philosophical and scientific approach with ample and fascinating anecdotes as well as striking photography from his numerous scuba dives off the Australian coast. He makes the case that cephalopods demonstrate a type of intelligence that is largely “alien” to our understanding of the concept but is no less worthy of wonder. He also ponders how and why such intelligence developed in such short-lived creatures (they generally live only a few years). Godfrey-Smith doesn’t provide definitive answers to his questions, but the journey he leads is both thoroughly enjoyable and informative. (Dec.)
Library Journal
★ 11/15/2016
What happens when a scuba-diving philosopher observing an octopus realizes that the octopus is observing him? The answer is this book: Godfrey-Smith (philosophy, CUNY Graduate Ctr.; Darwinian Populations and Natural Selection) weaves his undersea experiences with octopuses and cuttlefish with scientific and philosophical analysis. Conscious awareness has evolved more than once, Godfrey-Smith explains, as he investigates these otherworldly creatures and their ways of experiencing their aquatic environment. Avoiding technical scientific data, he focuses instead on a few key evolutionary concepts explained by means of simple analogies comprehensible to the general reader. Philosophically-oriented readers will be left wanting more precise explorations of the nature of consciousness, self-consciousness, awareness, sentience, and so on. Others will wish the author had more imaginatively conceived the creature's inner life. Godfrey-Smith ultimately stops short of such speculations, remaining the outside observer, a philosopher of science, even while haunting the imagination of readers after the book's covers are closed to wonder, "What is experience like for them?" VERDICT Godfrey-Smith's forays into philosophical analysis here are immanently readable. [See Prepub Alert, 6/19/16.]—Steve Young, McHenry Cty. Coll., Crystal Lake, IL
From the Publisher

A New York Times Book Review Editors’ Choice

One of the Most Anticipated Books of Fall 2016 and a Top Ten Science Book of Fall 2016, Publishers Weekly

"If this is philosophy, it works, because Godfrey-Smith is a rare philosopher who searches the world for clues. Knowledgeable and curious, he examines, he admires. His explorations are good-natured. He is never dogmatic, yet startlingly incisive." —Carl Safina, The New York Times Book Review

"A philosopher of science and experienced deep-sea diver, Godfrey-Smith has rolled his obsessions into one book, weaving biology and philosophy into a dazzling pattern that looks a lot like the best of pop science. He peppers his latest book with vivid anecdotes from his cephalopod encounters . . . [and] relates dramatic stories of mischief made by captive octopuses . . . [but] his project is no less ambitious than to work out the evolutionary origins of subjective experience . . . The result is an incredibly insightful and enjoyable book." —Meehan Crist, The Los Angeles Times

"[Other Minds is] a terrific mix of Cousteau-esque encounters with [cephalopods] in the wild . . . wide-ranging scientific discussion, and philosophical analysis. Beautifully written, thought-provoking, and bold, this book is the latest, and most closely argued, salvo in the debate over whether octopuses and other cephalopods are intelligent, sentient beings." —Olivia Judson, The Atlantic

"A smoothly written and captivating account of the octopus and its brethren . . . [Godfrey-Smith] stresses their dissimilarity to us and other mammals, but he also wants us to appreciate what we have in common . . . Mr. Godfrey-Smith mixes the scientific with the personal, giving us lively descriptions of his dives to 'Octopolis,' a site off the east coast of Australia at which octopuses gather." —Colin McGinn, The Wall Street Journal

"To investigate these astonishing animals with such empathy and rigor is achievement enough. To do so while casting light on the birth and nature of consciousness, as Godfrey-Smith does here, is captivating." —China Miéville, author of The City & The City and Kraken

"Peter Godfrey-Smith's Other Minds sells us on the sentient cephalopod and the history of our own consciousness, one tentacle at a time." —Sloane Crosley, Vanity Fair

"Fascinating . . . After reading this book, to paraphrase Byron, you will 'love not man the less, but cephalopods more.'" Callum Roberts, The Washington Post

"[Other Minds's] subject is so amazing, it’s hard not to be drawn along, just as Godfrey-Smith was when he extended a hand to an octopus and it reached out to return his touch, echoing his interest." —Irene Wanner, The Seattle Times

"Godfrey-Smith skillfully links the details of evolutionary history and biology to broader philosophical debates about the nature and function of consciousness . . . [Other Minds] is a valuable contribution to some of the most basic questions about the origins of conscious life." —Nick Romeo, The Chicago Tribune

"Peter Godfrey-Smith, a philosopher, skilfully combines science, philosophy and his experiences of swimming among these tentacled beasts to illuminate the origin and nature of consciousness." The Economist

"Godfrey-Smith has set himself a double challenge with this book: (i) putting together what is known about octopi behavior and cognition and (ii) showing why this information challenges our philosophical and scientific conceptions of the mind. The result is most convincing." —Ophelia Deroy, Science

"A concise and elegant guide to evolution, consciousness, and marine biology." Gary Drevitch, Psychology Today

"Deftly blending philosophy and evolutionary biology . . . Godfrey-Smith couples his philosophical and scientific approach with ample and fascinating anecdotes as well as striking photography from his numerous scuba dives off the Australian coast. He makes the case that cephalopods demonstrate a type of intelligence that is largely 'alien' to our understanding of the concept but is no less worthy of wonder . . . [Other Minds is] thoroughly enjoyable and informative." Publishers Weekly

"An engrossing blend of avidly described underwater adventures . . . and a fluid inquiry into the brain-body connection . . . Godfrey-Smith performs an exceptionally revealing deep dive into the evolutionary progression from sensing to acting to remembering to the coalescence of the inner voice, thus tracking the spectrum between sentience and consciousness." —Donna Seaman, Booklist

"I love this book, its masterful blend of natural history, philosophy, and wonder. Other Minds takes us on an extraordinary deep dive, not only beneath the waves, for a revelatory and intimate view of the mysterious and highly intelligent octopus, but also through the eons, to look at the nature of the mind and how it came about. It’s a captivating story, and Godfrey-Smith brings it alive in vivid, elegant prose. His ardent and humane passion for the octopus is present on every page. A must-read for anyone interested in what it’s like to be an octopus or in the evolution of the mindours and the very other, but equally sentient, minds of the cephalopods." —Jennifer Ackerman, author of The Genius of Birds

"One of the greatest puzzles of organic life is how and why certain animals became aware of themselves. Peter Godfrey-Smith uses the octopus as a portal to enter nonhuman consciousness, doing so with great sensitivity and first-hand knowledge." —Frans de Waal, author of Are We Smart Enough to Know How Smart Animals Are?

"Exciting, dramatic, vivid, revelatory, this book is full of jaw-dropping ideas and thrilling possibilities. In beautiful, clear, evocative writing, diver-philosopher Peter Godfrey-Smith will transform your understanding of the nature of life, the course of evolution, and the development of the mindours and others'. Other Minds will delight and challenge every naturalist, every diver, every person who has ever wondered about the nature of other creatures' experience. In other words, everyone should read this bookand come away with a more complex and compassionate relationship to the other animals with whom we share both Earth and sea." —Sy Montgomery, author of The Soul of an Octopus, a National Book Award finalist

"Godfrey-Smith delivers a revealing exploration of one—no, two!—of evolution's most critical turns, and one remarkable creature's trail-blazing, eight-armed foray into a mental life." —Jonathan Balcombe, author of What a Fish Knows

"One of our species's worst qualities is our insistence on an exclusive pathway to consciousness. Fortunately Peter Godfrey-Smith has given us a roadmap to a whole new territory of thinking. Other Minds is a gracious and generous exploration of this different land, one that will make you rethink the entire notion of sentience." —Paul Greenberg, New York Times bestselling author of Four Fish and American Catch

Product Details

ISBN-13:
9780374227760
Publisher:
Farrar, Straus and Giroux
Publication date:
12/06/2016
Pages:
272
Sales rank:
9,874
Product dimensions:
5.60(w) x 8.30(h) x 1.10(d)

Read an Excerpt

Other Minds

The Octopus, the Sea, and the Deep Origins of Consciousness


By Peter Godfrey-Smith

Farrar, Straus and Giroux

Copyright © 2016 Peter Godfrey-Smith
All rights reserved.
ISBN: 978-0-374-71280-8



CHAPTER 1

MEETINGS ACROSS THE TREE OF LIFE


Two Meetings and a Departure

On a spring morning in 2009, Matthew Lawrence dropped the anchor of his small boat at a random spot in the middle of a blue ocean bay on the east coast of Australia, and jumped over the side. He swam down on scuba to where the anchor lay, picked it up, and waited. The breeze on the surface nudged the boat, which started to drift, and Matt, holding the anchor, followed.

This bay is well-known for diving, but divers usually visit only a couple of spectacular locations. As the bay is large and typically pretty calm, Matt, a scuba enthusiast who lives nearby, had begun a program of underwater exploration, letting the breeze carry the empty boat around above him until his air ran out and he swam back up the anchor line. On one of these dives, roaming over a flat sandy area scattered with scallops, he came across something unusual. A pile of empty scallop shells — thousands of them — was roughly centered around what looked like a single rock. On the shell bed were about a dozen octopuses, each in a shallow, excavated den. Matt came down and hovered beside them. The octopuses each had a body about the size of a football, or smaller. They sat with their arms tucked away. They were mostly brown-gray, but their colors changed moment by moment. Their eyes were large, and not too dissimilar to human eyes, except for the dark horizontal pupils — like cats' eyes turned on their side.

The octopuses watched Matt, and also watched one another. Some started roaming around. They'd haul themselves out of their dens and move over the shell bed in an ambling shuffle. Sometimes this elicited no response from others, but occasionally a pair would dissolve into a multi-armed wrestle. The octopuses seemed to be neither friends nor enemies, but in a state of complicated coexistence. As if the scene were not sufficiently strange, many baby sharks, each just six inches or so long, lay quietly on the shells as the octopuses roamed around them.

A couple of years before this I was snorkeling in another bay, in Sydney. This site is full of boulders and reefs. I saw something moving under a ledge — something surprisingly large — and went down to look at it. What I found looked like an octopus attached to a turtle. It had a flat body, a prominent head, and eight arms coming straight from the head. The arms were flexible, with suckers — roughly like octopus arms. Its back was fringed with something that looked like a skirt, a few inches wide and moving gently. The animal seemed to be every color at once — red, gray, blue-green. Patterns came and went in a fraction of a second. Amid the patches of color were veins of silver like glowing power lines. The animal hovered a few inches above the sea floor, and then came forward to look at me. As I had suspected from the surface, this creature was big — about three feet long. The arms roved and wandered, the colors came and went, and the animal moved forward and back.

This animal was a giant cuttlefish. Cuttlefish are relatives of octopuses, but more closely related to squid. Those three — octopuses, cuttlefish, squid — are all members of a group called the cephalopods. The other well-known cephalopods are nautiluses, deep-sea Pacific shellfish which live quite differently from octopuses and their cousins. Octopuses, cuttlefish, and squid have something else in common: their large and complex nervous systems.

I swam down repeatedly, holding my breath, to watch this animal. Soon I was exhausted, but I was also reluctant to stop, as the creature seemed as interested in me as I was in it (in him? in her?). This was my first experience with an aspect of these animals that has never stopped intriguing me: the sense of mutual engagement that one can have with them. They watch you closely, usually maintaining some distance, but often not very much. Occasionally, when I've been very close, a giant cuttlefish has reached an arm out, just a few inches, so it touches mine. It's usually one touch, then no more. Octopuses show a stronger tactile interest. If you sit in front of their den and reach out a hand, they'll often send out an arm or two, first to explore you, and then — absurdly — to try to haul you into their lair. Often, no doubt, this is an overambitious attempt to turn you into lunch. But it's been shown that octopuses are also interested in objects that they pretty clearly know they can't eat.

To understand these meetings between people and cephalopods, we have to go back to an event of the opposite kind: a departure, a moving apart. The departure happened quite some time before the meetings — about 600 million years before. Like the meetings, it involved animals in the ocean. No one knows what the animals in question looked like in any detail, but they perhaps had the form of small, flattened worms. They may have been just millimeters long, perhaps a little larger. They might have swum, might have crawled on the sea floor, or both. They might have had simple eyes, or at least light-sensitive patches, on each side. If so, little else may have defined "head" and "tail." They did have nervous systems. These might have comprised nets of nerves spread throughout the body, or they might have included some clustering into a tiny brain. What these animals ate, how they lived and reproduced — all are unknown. But they had one feature of great interest from an evolutionary point of view, a feature visible only in retrospect. These creatures were the last common ancestors of yourself and an octopus, of mammals and cephalopods. They're the "last" common ancestors in the sense of most recent, the last in a line.

The history of animals has the shape of a tree. A single "root" gives rise to a series of branchings as we follow the process forward in time. One species splits into two, and each of those species splits again (if it does not die out first). If a species splits, and both sides survive and split repeatedly, the result may be the evolution of two or more clusters of species, each cluster distinct enough from the others to be picked out with a familiar name — the mammals, the birds. The big differences between animals alive now — between beetles and elephants, for example — originated in tiny insignificant splits of this sort, many millions of years ago. A branching took place and left two new groups of organisms, one on each side, that were initially similar to each other, but evolved independently from that point on.

You should imagine a tree that has an inverted triangular, or conical, shape from far away, and is very irregular inside — something like this:

Now imagine sitting on a branch on top of the tree, looking down. You are on the top because you're alive now (not because you are superior), and around you are all the other organisms alive now. Close to you are your living cousins, such as chimpanzees and cats. Further away, as you look horizontally across the top of the tree, you'll see animals that are more distantly related. The total "tree of life" also includes plants and bacteria and protozoa, among others, but let's confine ourselves to the animals. If you now look down the tree, toward the roots, you'll see your ancestors, both recent ones and those more remote. For any pair of animals alive now (you and a bird, you and a fish, a bird and a fish), we can trace two lines of descent down the tree until they meet in a common ancestor, an ancestor of both. This common ancestor might be encountered just a short way down the tree, or further down. In the case of humans and chimps we reach a common ancestor very quickly, living about six million years ago. For very different pairs of animals — human and beetle — we have to trace the lines further down.

As you sit in the tree, looking across at your near and distant relatives, consider a particular collection of animals, the ones we usually think of as "smart" — the ones with large brains, who are complex and flexible in their behavior. These will certainly include chimps and dolphins, also dogs and cats, along with humans. All these animals are quite near to you on the tree. They are fairly close cousins, from an evolutionary point of view. If we're doing this exercise properly we should also add birds. One of the most important developments in animal psychology over the last few decades has been the realization of how smart crows and parrots are. Those are not mammals, but they are vertebrates, and hence they are still fairly close to us, though not nearly as close as chimps. Having collected all these birds and mammals, we can ask: What was their most recent common ancestor like, and when did it live? If we look down the tree to where their lines of ancestry all fuse, what do we find living there?

The answer is a lizard-like animal. It lived something like 320 million years ago, a bit before the age of the dinosaurs. This animal had a backbone, was of reasonable size, and was adapted to life on land. It had an architecture similar to our own, with four limbs, a head, and a skeleton. It walked around, used senses similar to ours, and had a well-developed central nervous system.

Now let's look for the common ancestor that connects this first group of animals, which includes ourselves, to an octopus. To find this animal we have to travel much further down the branches. When we find it, about 600 million years before the present, the animal is that flattened worm-like creature I sketched earlier.

This step back in time is nearly twice as long as the step we took to find the common ancestor of mammals and birds. The human-octopus ancestor lived at a time when no organisms had made it onto land and the largest animals around it might have been sponges and jellyfish (along with some oddities I'll discuss in the next chapter).

Assume we've found this animal, and are now watching the departure, the branching, as it happened. In a murky ocean (on the sea floor, or up in the water column) we're watching a lot of these worms live, die, and reproduce. For an unknown reason, some split off from the others, and through an accumulation of happenstance changes they start to live differently. In time, their descendants evolve different bodies. The two sides split again and again, and before long we are looking not at two collections of worms, but at two enormous branches of the evolutionary tree.

One path forward from that underwater split leads to our branch of the tree. It leads to vertebrates, among others, and within the vertebrates, to mammals and eventually humans. The other path leads to a great range of invertebrate species, including crabs and bees and their relatives, many kinds of worms, and also the mollusks, the group that includes clams, oysters, and snails. This branch does not contain all the animals commonly known as "invertebrates," but it does include most of the familiar ones: spiders, centipedes, scallops, moths.

In this branch most of the animals are fairly small, with exceptions, and they also have small nervous systems. Some insects and spiders engage in very complex behavior, especially social behavior, but they still have small nervous systems. That's how things go in this branch — except for the cephalopods. These are a subgroup within the mollusks, so they are related to clams and snails, but they evolved large nervous systems, and the ability to behave in ways very different from other invertebrates. They did this on an entirely separate evolutionary path from ours.

Cephalopods are an island of mental complexity in the sea of invertebrate animals. Because our most recent common ancestor was so simple and lies so far back, cephalopods are an independent experiment in the evolution of large brains and complex behavior. If we can make contact with cephalopods as sentient beings, it is not because of a shared history, not because of kinship, but because evolution built minds twice over. This is probably the closest we will come to meeting an intelligent alien.


~ Outlines

One of the classic problems of my discipline — philosophy — is the relation between mind and matter. How do sentience, intelligence, and consciousness fit into the physical world? I want to make progress on that problem, vast as it is, in this book. I approach the problem by following an evolutionary road; I want to know how consciousness arose from the raw materials found in living beings. Aeons ago, animals were just one of various unruly clumps of cells that started living together as units in the sea. From there, though, some of them took on a particular lifestyle. They went down a road of mobility and activity, sprouting eyes, antennae, and means to manipulate objects around them. They evolved the creeping of worms, the buzzing of gnats, the global voyages of whales. As part of all this, at some unknown stage, came the evolution of subjective experience. For some animals, there's something it feels like to be such an animal. There is a self, of some kind, that experiences what goes on.

I am interested in how experience of all kinds evolved, but cephalopods will have special importance in this book. This is firstly because they are such remarkable creatures. If they could talk, they could tell us so much. That is not the only reason they clamber and swim through the book, though. These animals shaped my path through the philosophical problems; following them through the sea, trying to work out what they're doing, became an important part of my route in. In approaching questions about animal minds, it is easy to be influenced too much by our own case. When we imagine the lives and experiences of simpler animals, we often wind up visualizing scaled-down versions of ourselves. Cephalopods bring us into contact with something very different. How does the world look to them? An octopus's eye is similar to ours. It is formed like a camera, with an adjustable lens that focuses an image on a retina. The eyes are similar but the brains behind them are different on almost every scale. If we want to understand other minds, the minds of cephalopods are the most other of all.

Philosophy is among the least corporeal of callings. It is, or can be, a purely mental sort of life. It has no equipment that needs managing, no sites or field stations. There's nothing wrong with that — the same is true of mathematics and poetry. But the bodily side of this project has been an important side. I came across the cephalopods by chance, by spending time in the water. I began following them around, and eventually started thinking about their lives. This project has been much affected by their physical presence and unpredictability. It has also been affected by the myriad practicalities of being underwater — the demands of gear and gases and water pressure, the easing of gravity in the green-blue light. The efforts a human must make to cope with these things reflect differences between life on land and in water, and the sea is the original home of the mind, or at least of its first faint forms.

At the start of this book I placed an epigraph from the philosopher and psychologist William James, writing at the end of the nineteenth century. James wanted to understand how consciousness came to inhabit the universe. He had an evolutionary orientation to the issue, in a broad sense that included not just biological evolution but the evolution of the cosmos as a whole. He thought that we need a theory based on continuities and comprehensible transitions; no sudden entrances or jumps.

Like James, I want to understand the relation between mind and matter, and I assume that a story of gradual development is the story that has to be told. At this point, some might say that we already know the outlines of the story: brains evolve, more neurons are added, some animals become smarter than others, and that's it. To say that, though, is to refuse to engage with some of the most puzzling questions. What are the earliest and simplest animals that had subjective experience of some kind? Which animals were the first to feel damage, feel it as pain, for example? Does it feel like something to be one of the large-brained cephalopods, or are they just biochemical machines for which all is dark inside? There are two sides to the world that have to fit together somehow, but do not seem to fit together in a way that we presently understand. One is the existence of sensations and other mental processes that are felt by an agent; the other is the world of biology, chemistry, and physics.

Those problems won't be entirely resolved in this book, but it's possible to make progress on them by charting the evolution of the senses, bodies, and behavior. Somewhere in that process lies the evolution of the mind. So this is a philosophy book, as well as a book about animals and evolution. That it's a philosophy book does not place it in some arcane and inaccessible realm. Doing philosophy is largely a matter of trying to put things together, trying to get the pieces of very large puzzles to make some sense. Good philosophy is opportunistic; it uses whatever information and whatever tools look useful. I hope that as the book goes along, it will move in and out of philosophy through seams that you won't much notice.

The book aims, then, to treat the mind and its evolution, and to do so with some breadth and depth. The breadth involves thinking about different sorts of animals. The depth is depth in time, as the book embraces the long spans and successive regimes in the history of life.

The anthropologist Roland Dixon attributed to the Hawaiians the evolutionary tale I used as my second epigraph: "At first the lowly zoophytes and corals come into being, and these are followed by worms and shellfish, each type being declared to conquer and destroy its predecessor...." The story of successive conquests that Dixon outlines is not how the history really went, and the octopus is not the "lone survivor of an earlier world." But the octopus does have a special relation to the history of the mind. It is not a survivor but a second expression of what was present before. The octopus is not Ishmael from Moby-Dick, who escaped alone to tell the tale, but a distant relative who came down another line, and who has, consequently, a different tale to tell.


(Continues...)

Excerpted from Other Minds by Peter Godfrey-Smith. Copyright © 2016 Peter Godfrey-Smith. Excerpted by permission of Farrar, Straus and Giroux.
All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.
Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site.

Meet the Author


Peter Godfrey-Smith is a distinguished professor of philosophy at the Graduate Center, City University of New York, and a professor of history and the philosophy of science at the University of Sydney. He is the author of four books, including Theory and Reality: An Introduction to the Philosophy of Science and Darwinian Populations and Natural Selection, which won the 2010 Lakatos Award for an outstanding work on the philosophy of science. His underwater videos of octopuses have been featured in National Geographic and New Scientist, and he has discussed them on National Public Radio and many cable TV channels.

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