She had a strong recollection of the natives on Sumatra huddling in the treetops whenever the tigers came, which was often. There were no tigers on Borneo, but the banteng—the wild buffalo—was just as feared. It attacked for no apparent reason, and with lightning speed. One time a rhinoceros broke from a bamboo thicket, sundering their rank of bearers, leaving a path as broad as a cart track behind it in the matted undergrowth. And of course there were the snakes, the stuff of childhood nightmares. The king cobra had been known to pursue men for many miles, although if you had the presence of mind to shed one of your garments, it would halt to attack that, buying you precious moments to escape.
She described how they had emerged one morning from their hut to find a giant python coiled in a wooden cage, unable to escape, having swallowed whole the former occupant of the cage, a goat they kept for its milk.
Her most vivid memories, though, and the most disturbing, were of her father, of his physical and then his mental deterioration. When he wasn't hunting orangutans, he was preparing their skins and skeletons. He would emerge from his makeshift charnel house exhausted, reeking of putrefaction, his hands cut and red, raw from the arsenical soap he'd applied to the bones to deter insects. The feet of the trestle table he worked on were placed in bowls of water—a barrier to the ever-present ants—but somehow they always found a way onto his specimens. When he began to take this as a personal affront, her mother started to worry. When he threatened to shoot one of the bearers for sneaking sips of the arrack in which he preserved his pelts, it was time to talk of calling a halt to the venture.
He resisted the suggestion, insisting that the skins and skeletons were a lucrative source of income—which they were, zoological museums paid handsomely for both—and rejecting the counterargument that he had traveled to the tropics in the name not of Mammon but of Science.
With hindsight, Signora Docci went on, it was clear that the expedition was doomed from the first. It was the final stab of a desperate man intent on debunking Darwin. To her father's credit, his position had shifted since The Origin of Species was first published, moving from one of knee-jerk ridicule to a more tempered assessment of the scientific facts. The third phase of his own private evolution had taken the form of a preemptive strike: there was nothing wrong with Darwin's theories of natural selection because the most esteemed Christian thinkers, including Saint Augustine and Saint Thomas Aquinas, had already sanctioned a kind of "derivative creation"—the argument being that when God declared "Let the waters produce" and "Let the earth produce," he was conferring forces on the elements that enabled them, in accordance with his laws of nature, to produce various species of organic beings. Her father's efforts to harmonize the new science with Catholic orthodoxy soon foundered, though, as he struggled to bend the words of the venerable theologians to his own ends.
Instead, he reached for another theory—his last, and the one that had carried him and his family to the East Indies. This conceded to Darwin the development of new species by natural selection, man included, while allowing for a divine, overarching plan. Put simply, her father argued that after innumerable generations of influence, natural selection had run its course, spent its load. All life on earth had now entered an era of "conservative heredity" in which the power of adaptation in organisms had slowed to the point of being almost nonexistent. This theory permitted a return to the old idea of the absolute fixity of living species, with man at the top of the pyramid, as intended by God.
Where better to search for proof of this than among the anthropoids, the order of great apes whose existence now haunted man like some ancestral ghost? It was a matter of reliable record that two types of orangutan inhabited Borneo, living side by side, even nesting in the same trees. The mayas tjaping (as it was called by the locals) was a larger animal, with a square head flanked by fatty cheek pads. The mayas kassa was slighter, its face narrower, more delicately featured.
From the presence of orangutans on the neighboring island of Sumatra—the only other place on the planet where they were to be found—one could safely conclude that all orangutans shared a common heritage reaching back to a distant epoch when a land connection existed between the two islands. The big question— and one that her father believed answered itself—was this: given the separation of the Bornean and Sumatran orangutans hundreds of thousands, if not millions, of years previously, why had the two populations not evolved independently of each other according to the Darwinian model? By all accounts, they were the same, right down to the subtle differences of physiognomy between the two types of orangutan, both of which were also present on Sumatra.
This wasn't to say Darwin was wrong—there was too much evidence in favor of his evolutionary theory—simply that he was no longer right. The power of heredity had evidently increased since the primordial era to the point that living organisms were now fixed and immutable.
The logic was sound, even to her mother's skeptical ears, or she wouldn't have consented to accompany her husband to one of the least hospitable corners of the planet.
There was only one problem.
After a few months on Borneo, her father had identified only one type of orangutan—the mayas tjaping, big and square-headed. Some had fatty cheek-expansions, while others didn't, but this distinction seemed to be no more than a feature of age in the male of the species. It was looking increasingly likely that the sound logic was based on unsound evidence. There was only one way to tell.
It was on their trip to Sumatra that her father almost lost his mind, and on a couple of occasions his life (Dutch authority in the northern province of Aceh extending no further than the range of their guns from a handful of forts). During his time there, he shot, skinned and prepared the skeletons of more than fifteen orangutans. They, too, were all of one type—a different type, smaller than the mayas tjaping, with narrower faces and hair of a paler hue than their Bornean cousins. For that was what they clearly were: cousins, and several times removed.
Her father must have recognized the deep irony of his predicament, but he refused to accept it. Only after they had all returned to Borneo, and after another spate of slaughter, was he forced to concede the inevitable: the findings of his fellow naturalists who had visited the Malay archipelago before him were flawed, and by following in their footsteps he had not only failed in his mission to challenge Darwinian thinking, he had actually lent weight to it.
There were indeed two types of orangutan, but one type inhabited Borneo, the other Sumatra. Geographically divided, the species had adapted itself according to the demands of two different environments. And there was no reason whatsoever to assume that this wasn't an ongoing situation.
His only consolation came from his wife. Signora Docci's long- suffering mother tried to make him see that he had made an important contribution to the sum of zoological knowledge. He might even have identified a new subspecies of primate. There was certainly a strong case to be made for this. Most in his position would have leapt at the chance of laying claim to a part of the Tree of Life, even if it was just one small bifurcation at the end of a branch.