David Grann - The Devil & Sherlock Holmes

He spoke in a soft yet intense murmur, and whenever I addressed him he would turn his head sideways, so that I was talking directly into his right ear. (Later, he told me that he had damaged his left ear in a diving accident.) He reached into his wallet and pulled out his business card; beside his name was a picture of an iridescent squid. While I was looking at it, he grabbed one of my bags and hurried to his truck, which, as soon as he opened the driver’s door, exhaled a strange, pungent odor. “I do apologize,” he said, as he rolled down the windows. “You’ll find that everything around me smells of dead squid and ciggies.” In the back seat was a metal pole that was three feet long, with a net on the end. I soon discovered that he carried it with him wherever he went, often slung over his shoulder, as if he were a butterfly hunter.

Over the next few days, we began making preparations for our maiden voyage. At one point, we were speeding down the highway, heading to the store for supplies, when he slammed on the brakes and reversed, in the middle of traffic. “I almost forgot,” he said, parking in a lot that overlooked a harbor. He leaped out with the net and darted down a wharf, a lit cigarette dangling from his mouth. He leaned over the edge, the winds buffeting his face, and held the net high over his head. For a moment, he didn’t move or breathe. “There,” he said, and lunged with the net, slashing at the water. As he pulled the net in, his pant legs wet with spray, I glimpsed a dozen silvery sprat—a minnow-like fish—dancing in the mesh. “I know I look a bit like a bugger,” he said. “But these things are rather important.”

After he had flung the net into the water several more times (“Believe it or not, there is a technique to this,” he said), he returned to his truck and tossed the sprat into a white bucket in the back seat. We travelled farther down the road, the sprat jostling behind us, and eventually stopped at an aquarium called Kelly Tarlton’s Antarctic Encounter and Underwater World. (In its brochures, O’Shea was hailed as the “world-renowned squid man.”)

He grabbed the bucket, and we headed inside. “This is where I keep them,” he told me. He led me into a damp room with fluorescent lights, in which there was a round glass tank; inside, darting from side to side, were seventy baby squid, each an inch long. O’Shea explained that these squid, which are found in coastal areas, were a smaller species than Architeuthis. “Look at them,” he said. “They’re bloody marvellous, aren’t they?”

O’Shea is one of the few people in the world who have succeeded in keeping not only coastal but also deep-sea squid alive in captivity. Unlike an octopus, which, as he put it, “you can’t kill, no matter how hard you try,” a squid is highly sensitive to its environment. Accustomed to living in a borderless realm, a squid reacts poorly when placed in a tank, and will often plunge, kamikaze-style, into the walls, or cannibalize other squid.

In 2001, during a monthlong expedition at sea, O’Shea caught a cluster of paralarval giant squid in his nets, but by the time he reached the docks all of them had died. He was so distraught that he climbed into the tank, in tears, and retrieved the corpses himself. “I had spent every day, every hour, trying to find the paralarvae, and then they died in my grasp,” he told me. For two years, he was so stricken by his failure that he refused to mount another expedition. “I knew if I failed again I would be finished,” he recalled. “Not just scientifically but physically and emotionally.”

He couldn’t stop wondering, though, about what had happened in the tank. His wife, Shoba, a computer scientist who was born in India, told me that sometimes in the middle of an unrelated conversation he would suddenly say, “What did I do wrong?” O’Shea became determined to correct what he called “my fatal mistake,” and began a series of painstaking experiments on other species of juvenile deep-sea squid. He would subtly alter the conditions of captivity: tank size, intensity of light, oxygen levels, salinity. He discovered that the tank in which he had stored his paralarvae during the expedition had two lethal flaws: it had a rectangular shape, which, for some reason, caused the squid to sink to the bottom and die; and its walls were made of polyethylene, a plastic compound that, it turns out, is toxic to deep-sea squid. “Knowing what I know now, I feel like a fool,” he said. “It was like walking them to their execution.”

In the mid-nineteen-seventies, Clyde Roper managed to keep ocean-dwelling squid alive for fourteen days—then a record. O’Shea, using cylindrical tanks made of acrylic, had kept his latest coastal specimens alive for eighty days. Earlier, he had maintained a batch of deep-sea squid for more than seventy days, which he then returned to the wild, satisfied that his experiment was a success.

He held up his white bucket. “Watch this,” he said, and dumped the sprat into the tank. Though the fish were bigger than the squid, the squid shot toward them, with their arms curved over their heads, hiding their tentacles; they looked metallic, except for their bulging green eyes. Then the squids’ arms sprang open, and their tentacles exploded outward, lashing their prey. The fish squirmed to break free, but the squid engulfed them in a web of arms. They drew their frantic prey into their beaks, and the squids’ stomachs turned bright red as they filled with the blood of the fish. Staring into the tank, I imagined what a full-grown giant squid might look like swallowing its prey.

When the squid finished eating, O’Shea said, “If I can keep these squid alive, there’s no reason I can’t keep the giant alive. I’ll just need a bigger tank.”

He was nervous about what would happen to his squid during our expedition—he had left the animals alone for only one day, on Christmas—and he anxiously arranged with an employee at the aquarium to care for them in his absence. “You need to treat them with reverence,” he said.

We then headed to his university office, where he had to gather various things for the expedition. It was in an attic-like space, and seemed entirely devoted to what he described as his “lunatic obsession.” Pasted to the walls and stacked on tables were pictures, many of which he had sketched himself, of giant squid, colossal squid, broad squid, warty squid, leopard squid. In addition, there were squid toys, squid key chains, squid journals, squid movies, and squid-related newspaper clippings (“WARNING! GIANT FLYING SQUID ATTACKING VESSELS OFF AUSTRALIA”). On the floor were dozens of glass jars filled with dead squid that had been preserved in alcohol, their eyes and tentacles pressing against the glass.

Many squid scientists wait for decades before getting their hands on the remains of an Architeuthis. O’Shea, however, has developed a large network of fishermen informants, and in the last seven years has collected a hundred and seventeen corpses. Together, these specimens offer a clearer picture of the giant squid. O’Shea has concluded that although the animals could be as heavy as a thousand pounds, most weigh between a hundred and four hundred pounds. (Females are typically heavier than males.) His squid collection also provided some of the first clues about the animal’s diet. In an article published in the New Zealand Journal of Zoology , O’Shea documented the “gut contents” of his specimens, which included arrow squid and chunks of another Architeuthis (“proof of cannibalism”).

In another recent experiment, O’Shea dissected a squid’s statolith: a bonelike particle in the animal’s ear that helps the animal balance itself. A statolith builds up rings of calcium deposits over time, he explained, and, like the rings on tree trunks, the layers of bone might help scientists determine a squid’s age and growth rate.