The Soul of an Octopus: A Surprising Exploration into the Wonder of Consciousness

But I am also aware that in animals, as well as people, there is an inborn temperament, a way of seeing the world, that interacts with the environment, and that shapes personality. There’s nobody else doing what I’m doing. It may be weird, but it’s unique.

If you took the monsters' point of view, everything they did made perfect sense. The trick was learning to think like a monster.

I’ve always harbored a fondness for monsters. Even as a child, I had rooted for Godzilla and King Kong instead of for the people trying to kill them. It had seemed to me that these monsters’ irritation was perfectly reasonable. Nobody likes to be awakened from slumber by a nuclear explosion, so it was no wonder to me Godzilla was crabby; as for King Kong, few men would blame him for his attraction to pretty Fay Wray. (Though her screaming would have eventually put off anyone less patient than a gorilla.) If you took the monsters’ point of view, everything they did made perfect sense. The trick was learning to think like a monster.

A lion is a mammal like us; an octopus is put together completely differently, with three hearts, a brain that wraps around its throat, and a covering of slime instead of hair. Even their blood is a different color from ours; it’s blue, because copper, not iron, carries its oxygen.

The self,” Blackmore writes, “is just a fleeting impression that arises with each experience and fades away again. . . . There is no inner self,” she argues, “only multiple parallel processes that give rise to a benign inner delusion—a useful fiction.” She argues that consciousness itself is a fiction.

Here is an animal with venom like a snake, a beak like a parrot, and ink like an old-fashioned pen. It can weigh as much as a man and stretch as long as a car, yet it can pour its baggy, boneless body through an opening the size of an orange. It can change color and shape. It can taste with its skin. Most fascinating of all, I had read that octopuses are smart.

Hormones and neurotransmitters, the chemicals associated with human desire, fear, love, joy, and sadness, “are highly conserved across taxa,” Jennifer said. This means that whether you’re a person or a monkey, a bird or a turtle, an octopus or a clam, the physiological changes that accompany our deepest-felt emotions appear to be the same. Even a brainless scallop’s little heart beats faster when the mollusk is approached by a predator, just like yours or mine would do were we to be accosted by a mugger.

Just about every animal,” Scott says—not just mammals and birds—“can learn, recognize individuals, and respond to empathy.

But what is the soul? Some say it is the self, the “I” that inhabits the body; without the soul, the body is like a lightbulb with no electricity. But it is more than the engine of life, say others; it is what gives life meaning and purpose. Soul is the fingerprint of God.

Humans have always exalted dreams. Pindar of Thebes, the Greek lyric poet, suggested that the soul is more active while dreaming than while awake. He believed that during a dream, the awakened soul may see the future, “an award of joy or sorrow drawing near.” So it’s no wonder that humans were quick to reserve dreams for people alone; researchers for many years claimed dreams were a property of “higher” minds. But any pet owner who has heard her dog woof or seen his cat twitch during sleep knows that is not true. MIT researchers now know not only that rats dream, but what they dream about. Neurons in the brain fire in distinctive patterns while a rat in a maze performs particular tasks. The researchers repeatedly saw the exact same patterns reproduced while the rats slept—so clearly that they could tell what point in the maze the rat was dreaming about, and whether the animal was running or walking in the dream. The rats’ dreams took place in an area of the brain known to be involved with memory, further supporting a notion that one function of dreams is to help an animal remember what it has learned.

In her memoir of living among the Bushmen, The Old Way: A Story of the First People, my friend Liz lovingly invokes an image first coined by evolutionary biologist Richard Dawkins: “You are standing beside your mother, holding her hand. She is holding her mother’s hand, who is holding her mother’s hand. . . . ” Eventually the line stretches three hundred miles long and goes back five million years, and the clasping hand of the ancestor looks like that of a chimpanzee.

She’s looking right at you,” Scott says. As I hold her glittering gaze, I instinctively reach to touch her head. “As supple as leather, as tough as steel, as cold as night,” Hugo wrote of the octopus’s flesh; but to my surprise, her head is silky and softer than custard. Her skin is flecked with ruby and silver, a night sky reflected on the wine-dark sea. As I stroke her with my fingertips, her skin goes white beneath my touch. White is the color of a relaxed octopus; in cuttlefish, close relatives of octopus, females turn white when they encounter a fellow female, someone whom they need not fight or flee.

There is another important difference as well. Human eyes have three visual pigments, allowing us to see color. Octopuses have only one—which would make these masters of camouflage, commanding a glittering rainbow of colors, technically color-blind. How, then, does the octopus decide what colors to turn? New evidence suggests cephalopods might be able to see with their skin.

In her memoir of living among the Bushmen, The Old Way: A Story of the First People, my friend Liz lovingly invokes an image first coined by evolutionary biologist Richard Dawkins: “You are standing beside your mother, holding her hand. She is holding her mother’s hand, who is holding her mother’s hand. . . . ” Eventually the line stretches three hundred miles long and goes back five million years, and the clasping hand of the ancestor looks like that of a chimpanzee. I loved picturing one of Octavia’s arms stretching out to meet one of her mother’s arms, and one of her mother’s mother’s arms, and her mother’s mother’s mother’s. . . . Suckered, elastic arms, reaching back through time: an octopus chorus line stretching not just hundreds, but many thousands of miles long. Back past the Cenozoic, the time when our ancestors descended from the trees; back past the Mesozoic, when dinosaurs ruled the land; back past the Permian and the rise of the ancestors of the mammals; back, past the Carboniferous’s coal-forming swamp forests; back past the Devonian, when amphibians emerged from the water; back past the Silurian, when plants first took root on land—all the way to the Ordovician, to a time before the advent of wings or knees or lungs, before the fishes had bony jaws, before blood pumped from a multichambered heart. More than 500 million years ago, the tides would have been stronger, the days shorter, the year longer, and the air too high in carbon dioxide for mammals or birds to breathe. All the earth’s continents huddled in the Southern Hemisphere. And yet still, the arm of Octavia’s ancestor, sensitive, suckered, and supple, would have been recognizable as one of an octopus.

The idea of universal consciousness suffuses both Western and Eastern thought and philosophy, from the “collective unconscious” of psychologist Carl Jung, to unified field theory, to the investigations of the Institute of Noetic Sciences founded by Apollo 14 astronaut Edgar Mitchell in 1973. Though some of the Methodist ministers of my youth might be appalled, I feel blessed by the thought of sharing with an octopus what one website (loveandabove.com) calls “an infinite, eternal ocean of intelligent energy.” Who would know more about the infinite, eternal ocean than an octopus? And what could be more deeply calming than being cradled in its arms, surrounded by the water from which life itself arose? As Wilson and I pet Kali’s soft head on this summer afternoon, I think of Paul the Apostle’s letter to the Philippians about the power of the “peace that passeth understanding . . .

reverie. To share such a moment of deep tranquility with another being, especially one as different from us as the octopus, is a humbling privilege.

Octopus slime is sort of a cross between drool and snot. But in a nice way. And it’s very useful. It helps to be slippery if you’re squeezing your body in and out of tight places. Slime keeps the octopus moist if it wants to emerge from the water, which some species of octopus do with surprisingly frequency in the wild.

Just about every animal,” Scott says—not just mammals and birds—“can learn, recognize individuals, and respond to empathy.” Once you find the right way to work with an animal, be it an octopus or an anaconda, together, you can accomplish what even Saint Francis might have considered a miracle.

Most animals on this planet live in the ocean. And most of them are invertebrates.

Isn’t this what we want to know about those whom we care about? What is it like, we wonder at each meeting, in shared meals and secrets and silences, with each touch and glance, to be you?

But Wilson was ahead of the curve. Long before the first octopus-enrichment handbook was published, many octopuses ago, he set out to create a safe toy worthy of an octopus’s intellect. Working at his lab at Arthur D. Little Corp., Wilson devised a series of three clear Plexiglas cubes with different locks. The smallest of the three has a sliding latch that twists to lock down, like the bolt on a horse’s stall. You can put a live crab—a favorite food—inside and leave the lid unlocked. The octopus will lift the lid. When you lock the lid, invariably the octopus will figure out how to open it. Then it’s time to deploy the second cube. This one has a latch that slides counterclockwise to catch on a bracket. You put the crab in the first box and then lock it inside the second box. The octopus will figure it out. And finally, there’s a third cube. This one has two different latches: a bolt that slides into position to lock down, and a second one with a lever arm, sealing the lid much like an old-fashioned canning jar closes. Bill told me that once the octopus “gets it,” the animal can open all four locks in three or four minutes.

The ocean, for me, is what LSD was to Timothy Leary. He claimed the hallucinogen is to reality what a microscope is to biology, affording a perception of reality that was not before accessible. Shamans and seekers eat mushrooms, drink potions, lick toads, inhale smoke, and snort snuff to transport their minds to realms they cannot normally experience. (Humans are not alone in this endeavor; species from elephants to monkeys purposely eat fermented fruit to get drunk; dolphins were recently discovered sharing a certain toxic puffer fish, gently passing it from one cetacean snout to another, as people would pass a joint, after which the dolphins seem to enter a trancelike state.)

The ability to ascribe thoughts to others, thoughts that might differ from our own, is a sophisticated cognitive skill, known as “theory of mind.

I wonder: Can a brainless animal feel curiosity? Does it want to play? Or does it only “want” toys or food the way a plant “wants” the sun? Does a sea star experience consciousness? If it does, what does consciousness feel like to a sea star? Clearly, I have entered a world I cannot

In his classic The Outermost House, American naturalist Henry Beston writes that animals “are not brethren, they are not underlings” but beings “gifted with extensions of the senses we have lost or never attained, living by voices we shall never hear.” They are, he writes, “other nations, caught with ourselves in the net of life and time, fellow prisoners of the splendor and travail of the earth.

at California’s Monterey Bay Aquarium found a banana peel on the floor in front of the Shale Reef exhibit at 3 a.m. On closer inspection, the banana peel turned out to be a healthy, fist-size red octopus. The security officer followed the wet slime trail and replaced the octopus in the exhibit it had come from. But here’s the shocking part: The aquarium didn’t know it had a red octopus living in its Shale Reef exhibit. Apparently the octopus hitchhiked there as a juvenile, attached to a rock or sponge added to the exhibit, and grew up at the aquarium without anyone knowing it was there.

A giant Pacific octopus—the largest of the world’s 250 or so octopus species—can easily overpower a person. Just one of a big male’s three-inch-diameter suckers can lift 30 pounds, and a giant Pacific octopus has 1,600 of them. An octopus bite can inject a neurotoxic venom as well as saliva that has the ability to dissolve flesh. Worst of all, an octopus can take the opportunity to escape from an open tank, and an escaped octopus is a big problem for both the octopus and the aquarium.

Had a person attempted to taste me so soon after we met, I would have been alarmed; but since Athena was an octopus, I was thrilled. Although we couldn’t have been more different — I, a terrestrial vertebrate constrained by joints and bound to air; she, a marine mollusk with not a single bone, who breathed water — she was clearly as curious about me as I was about her.

Assessing the mind of a creature this alien demands that we be extraordinary flexible in our own thinking. Marine biologist James Wood suggests our hubris gets in our way.

Perhaps an even more surprising case was reported in June 2012, when a security officer at California’s Monterey Bay Aquarium found a banana peel on the floor in front of the Shale Reef exhibit at 3 a.m. On closer inspection, the banana peel turned out to be a healthy, fist-size red octopus. The security officer followed the wet slime trail and replaced the octopus in the exhibit it had come from. But here’s the shocking part: The aquarium didn’t know it had a red octopus living in its Shale Reef exhibit. Apparently the octopus hitchhiked there as a juvenile, attached to a rock or sponge added to the exhibit, and grew up at the aquarium without anyone knowing it was there.