On these parched islands, the tortoises were prized for their ability to slurp moisture from prickly pear cacti, and to drink enough at the rare springs to sustain them for months on end. Thirst-racked sailors would catch and kill them purely for the contents of their bladders. “In one I saw killed, the fluid was quite limpid, and had only a very slightly bitter taste,” wrote Darwin, having sportingly chugged some tortoise urine for science.
Today, none of this is allowed. El Chato Ranch, which I visited in the pouring rain, permits selfies with its resident tortoises but absolutely no touching, eating, or disemboweling. Most of the Galápagos have been designated by Ecuador as a national park, with a $200 entrance fee—up from $100 just two years ago—and a strict injunction to stay six feet away from the animals. The archipelago is also home to the flightless cormorant, whose former wings are now stumpy nubs; a species of batfish that looks like it is wearing bright-red lipstick; and the marine iguana, which ejects excess salt from its body by sneezing. (Catch a big group at the right moment and they can go off like the cannons in the 1812 Overture.) These animals all exist in the Galápagos and nowhere else.
The usual story of Darwin’s visit is that he cataloged the small differences that had emerged in animals across the islands—discrepancies in the beaks of the finches being a prime example—as each species responded to the unique conditions. In a flash of insight, he understood the mechanism of evolution: survival of the fittest. The truth is more complicated, and more interesting. His ship, the H.M.S. Beagle, spent only five weeks here, and Darwin landed on just four of the 13 major islands. At first, he did not recognize the importance of the variation among the islands, and did not label many of his bird specimens with their precise origins. The greatest study of what we now call “Darwin’s finches” was done by a British couple, Peter and Rosemary Grant, who visited the same uninhabited island, Daphne Major, every year from 1973 to 2013.
Darwin also didn’t notice the numerous subspecies of giant tortoise until the vice governor called attention to their variety and declared “that he could with certainty tell from which island any one was brought,” the naturalist wrote in his field notebook. Tortoises on Hood and Charles Islands, for instance, had evolved shells that were curved upward at the front like a saddle, allowing their necks to reach higher vegetation. Oh, and Darwin didn’t even coin the phrase survival of the fittest. That came from one of the early reviewers of Origin, Herbert Spencer. Darwin liked it so much that he incorporated it into later editions.
The mythology of blinding-inspiration-in-paradise is so appealing that it has outcompeted the truth. The actual story—the one that drove me here—is that Darwin was above all an empiricist. He took nothing on trust. He wanted to see things for himself, measure them, catalog them, and perhaps even eat them, and he was willing to endure any combination of boredom, nausea, and danger to do so. He was an omnivore, as interested in geology as biology when he toured South America, and his most famous theory drew on economics as well. He had an ego, definitely, but he was also open-minded and curious; he wanted to understand nature, not just plunder it like so many colonial explorers. (In later life, he supported animal charities and called for vivisection to be regulated.) He was willing to push back against editors, too, such as the one who suggested that he should reframe Origin to focus only on pigeons, because “everybody is interested in pigeons.”
All of that should make him any writer’s hero.
The British first named the individual islands in the 1600s—Charles Island after King Charles II, James Island (where Darwin spent most of his time) after the King’s brother, and so on—although most guidebooks now use the official Spanish names. Today Ecuador treats the Galápagos as precious jewels for both noble and commercial reasons. To enter, you need to complete a biosecurity declaration, promising not to introduce any plants or animals that could rampage through this delicate ecosystem. There are no international flights into the archipelago. For me, the two-hour flight to the territory’s main airport, on Baltra Island, came at the end of a tiring slog from London to Miami, and then on to Quito, the high-altitude Ecuadoran capital, where the thin air gave me a headache the instant I stepped off the plane.
I consoled myself on the long journey by reading accounts of Darwin’s five years on the Beagle, which were marked by seasickness so intense that he traveled overland by horse whenever he could, catching up with the ship farther along its journey. “I hate every wave of the ocean, with a fervor, which you, who have only seen the green waters of the shore, can never understand,” he wrote to his cousin William. His captain, Robert FitzRoy, recorded that Darwin was “a martyr to confinement and sea-sickness when under way.”
One of the great mysteries of Darwin’s life is how he made such a success of his five years at sea, which came between a directionless youth and an adulthood blighted by anxiety and illness. When he left England, at age 22, he was a dilettante who had washed out of medical school and was wavering about becoming a parson. His main interaction with birds and mammals was shooting them. He returned from his sea voyage a more serious and ambitious man, but one plagued for the rest of his life by vomiting, palpitations, “extreme spasmodic daily & nightly flatulence,” and vague, shifting symptoms of mental distress. He installed a lavatory behind a screen in his study at Down House, in Kent, so that he could void himself from either end as necessary and quickly return to work.
During his half decade on the Beagle, though, Darwin worked steadily, sending crates of specimens home on passing ships, and he endured the loneliness and ennui of the voyage with remarkable fortitude. Time at sea was notoriously hard on sailors’ mental health; the Beagle’s previous captain, Pringle Stokes, had killed himself during the bleak southern winter. (The weather was so dreary, he wrote in June 1828, that “the soul of man dies in him.” A month later, he put a gun to his head in his cabin.) FitzRoy took over as captain soon after, and decided that on his second Beagle voyage, he would take a gentleman companion to jolly him along. He and Darwin ate meals together and talked about current affairs, tiptoeing around their different political backgrounds (FitzRoy was a Tory; Darwin was from a Whig family) and intensity of religious belief (FitzRoy was a creationist; Darwin, even then, was a doubter). He gave Darwin the affectionate nickname Philos, for “natural philosopher.”
In addition to seasickness, Darwin had to brave an equatorial climate far removed from the English Midlands, where he (and I) grew up. The midday sun is directly overhead, and on the youngest islands, which have little soil and therefore little vegetation, there is no shade to hide in. “Nothing could be less inviting than the first appearance,” he wrote on landing at Chatham Island (now San Cristóbal, the seat of government). “The dry and parched surface, being heated by the noonday sun, gave to the air a close and sultry feeling, like that from a stove: we fancied even that the bushes smelt unpleasantly.” And this was in September, the cooler of the two seasons! I had come during the first half of the year, the hotter rainy season, when the seas are warm, the air temperature is about 80 degrees Fahrenheit, and the humidity wilts you like spinach.
On the first full day, crossing a scorching beach on the way back from seeing the marine iguanas at Tortuga Bay, I began to suffer from some sort of humidity-induced delirium, despite unfurling a legionnaire’s hat over my neck and shoulders. I distinctly remember thinking at one point that I had to “lock in,” the kind of extreme-sports jargon that my fully operational mind would disdain. After I had arrived safely at the hotel and rehydrated aggressively, I was amazed once again that Britons managed to explore and conquer so much of the globe, despite our manifest maladaptation to anything other than mild drizzle. That we did so before the advent of wicking fabrics, bug spray, and SPF 50 is even more implausible; I felt as ill-prepared for the climate as Captain Scott did when he relied on ponies rather than sled dogs in Antarctica, or the equally doomed Burke and Wills expedition, which took 20 tons of equipment, including a Chinese gong, into the Australian outback.
Unfortunately, what drove some of those early explorers was an unfounded (and occasionally fatal) sense of racial superiority: Europeans knew best. On FitzRoy’s previous Beagle voyage, in 1830, a whisper of this attitude crept into the ship’s scientific mission to map the South American coastline. At the southernmost tip of the continent, Tierra del Fuego, FitzRoy effectively kidnapped four Indigenous people as revenge for the theft of one of his boats. He gave them allegedly English names—York Minster, Jemmy Button, Fuegia Basket, and Boat Memory—and took them back to England. (The birth names of the first three were Elleparu, Orundellico, and Yokcushlu; Boat Memory’s name has been lost.) The idea was that they would be “civilized” and returned, accompanied by a missionary, to convert their benighted fellow Fuegians to Christianity.
In fact, the missionary bailed after experiencing a few days of harsh Fuegian life, and the Fuegians quickly reverted to their ancestral ways. “Captain Fitz Roy could never ascertain that the Fuegians have any distinct belief in a future life,” Darwin observed in his diaries. To the average Victorian gentleman, this was proof enough that they were “savages.” I wonder, though, if the assertion gnawed at Darwin, given that his research was already drawing him away from religious faith. “Science has nothing to do with Christ; except in so far as the habit of scientific research makes a man cautious in admitting evidence,” he would write to a friend toward the end of his life, adding: “As for a future life, every man must judge for himself between conflicting vague probabilities.” [...]
Today, Darwin is known as the great heretic, the man whose work shocked the Victorian establishment and undermined the Church. But the exact heresy he committed is not well understood. He was not the first person to suggest that species evolve—in fact, his own grandfather Erasmus had suggested that all warm-blooded animals might have arisen from “one living filament” in his 1794 book, Zoonomia. Darwin was also not the first person to notice that the boundaries between species were more fluid than the Swedish taxonomist Carl Linnaeus had acknowledged. (The Comte de Buffon, a French biologist, had done so at the time.) And he was far from the first Victorian intellectual to question the spurious biblical chronology suggesting that the Earth was created on Sunday, October 23, 4004 B.C.E. He didn’t even come up with the idea of selection pressures, per se—he got that from an economist, Thomas Malthus, who suggested that human populations tended to outgrow their available food sources and suffer famines as a result.
No, what offended some of Darwin’s early readers was that his vision of the universe counted humans as just another animal, rather than God’s special creation. Accepting evolution meant having “an ape for a grandfather,” as one observer put it. From the start, Darwin understood the political and religious implications of this, and he knew that advancing the notion publicly would make him a controversial figure. His own wife, Emma, was a devout Christian; some of his friends and colleagues were too.
After returning from the Galápagos, he spent more than two decades noodling in his “transmutation notebooks” without having the courage to expose his ideas, and his evidence, to universal scrutiny. In 1844, he wrote to his friend Joseph Hooker: “At last gleams of light have come, & I am almost convinced (quite contrary to opinion I started with) that species are not (it is like confessing a murder) immutable.” It is like confessing a murder. Another decade-plus passed before he was driven into print by the unwelcome discovery that another scientist, Alfred Russel Wallace, had independently arrived at the same conclusion.
The publication of Origin, in 1859, gave everyone in Victorian polite society the opportunity to have an argument that had been brewing for many years. Soon after its release, Darwin’s critics and defenders clashed in a public debate that pitted the fierce Darwinian Thomas Henry Huxley against the bishop of Oxford and the former Captain FitzRoy, who preferred to believe that the fossils they had seen together in Patagonia had been deposited there by the biblical flood. (Darwin was too anxious and flatulent to attend himself.)
by Helen Lewis, The Atlantic | Read more:
Image: Will Matsuda for The Atlantic
