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1 October 2011 The Species Seekers: Heroes, Fools, and the Mad Pursuit of Life on Earth.
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“A rose by any other name would smell as sweet.” True enough, but would Shakespeare have dreamed that there would one day be a hundred names for roses, each labeling a species with a scent of its own? A century after Shakespeare, the Swede Carlos Linnaeus began this global naming quest, and how remarkably sweet it would prove to name a species. Over time, the Linnaean rules of nomenclature have been modified, but the extraordinary pleasure of christening an organism new to science remains intact. Perhaps this explains why the seemingly esoteric debates of systematics have often been so heated: The choice of phenetics, cladistics, or phylogenetic systematics affects whether a scientist can describe, name, and retain cherished taxa.

Species Seekers: Heroes, Fools, and the Mad Pursuit of Life on Earth covers natural history from the days of Linnaeus to the early twentieth century. Although the book is directed at nonspecialists, its content is consistently smart and intriguing enough to please professional biologists. I enjoyed, for example, the descriptions of how, before the establishment of most public museums, novel specimens were purchased at great cost from dealers and were shown primarily as public amusements at taverns, at coffee houses, and in private collections. I was also fascinated by the accounts of early attempts at preservation techniques. Certainly, the study of exotic species was initially not for the squeamish: Sometimes, whole collections would rot completely away before an expert had the chance to study them.

Although I was disappointed to find no reference to the botanist Richard Spruce, and even the great Alexander von Humboldt is mentioned only briefly, the book does justice to dozens of underappreciated naturalists. Among them is a favorite of mine, Mary Kingsley. Conniff describes Mary stumbling through the forests of west Africa, confused by the riot of nature all around, until a tribal hunter recognized that she had had a “moment of revelation, remarking, ‘Ah, you see.’” I, like other field biologists, relate to her experience: In a daze from the sweltering exertions of a long search, I have collapsed to the ground only to find one of the species I have been seeking coming into focus—a spider or an ant. For the luckiest and most gifted species seekers, such moments have included grander revelations. Years of immersion in nature, isolated from ordinary distractions, provided special opportunities for their minds to move along fresh channels. This led, for example, to Alfred R. Wallace's realization during his long travels in Asia of the concept of natural selection, independent of Darwin's discovery of the idea.

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Species seekers have always been far more than mere novelty collectors; they have given us many of the core ideas of biology. Beyond the obvious case of Darwin, Conniff considers the ways in which these collectors have changed how we view the world. By placing man in a single system with other organisms, Linnaeus, like Galileo before him, paved the way for seeing our species as less central to the universe, and taxonomic groupings turned out to mesh easily with Darwin's evolutionary trees. As Conniff describes, Linneaus therefore inadvertently primed later naturalists to take an evolutionary point of view.

Some of these new ideas did not pan out, however. In 1749, the Frenchman Georges-Louis Buffon proposed that the inhospitable climate of the New World made American species “smaller and less capable”—humans included. Thomas Jefferson, who was president of the American Philosophical Society and was devoted to natural history, during his terms as vice president and president of the United States, was determined to prove Buffon wrong. Jefferson thought a beast he called a “mammoth” (now known as the mastodon), known then from a fossil tooth, to be larger than any European animal. Looking for a live mammoth in the American West seemed reasonable to Jefferson on the basis of Indian myths and especially because species extinction was at that time a foreign idea to science. (That would change by the end of his life.)

By the end of the nineteenth century, scientists were describing new parasitic species and elucidating their life cycles; Conniff describes this work of immense practical value as part of the species-seeker tradition. A tale of how Patrick Manson and Ronald Ross figured out the source of malaria makes for dramatic reading. The book ends by bringing us up to speed with a brief overview of species seekers today.

The book addresses both the high and the low points of what it was like to be one of the first species seekers. Conniff notes how they “were fanning out across the globe to play their part in a fabulous adventure story,” but he also makes clear that “adventure was often just a nice word for prolonged hardship followed by painful death.” The author knows of what he speaks. Conniff has spent months with systematists as a contributor of articles on such creatures as fire ants and leeches for the National Geographic and Smithsonian magazines, but this book omits these firsthand experiences except to reference Conniff's participation in one expedition to Ecuador with two unnamed naturalists, who, he says, later died “when their reconnaissance plane crashed into a cloud forest.” Any field biologist will recognize this brief description of the incomparable botanist Alwyn Gentry and ornithologist Ted Parker III.

I once spent a week with Conniff, who persevered nightly clouds of mosquitoes in a search for Avicularia tarantulas. Six years later, I was the entomologist on an expedition in Myanmar with my friend, cobra expert Joe Slowinski, when Joe was bitten by a krait—a snake whose “bite is as dangerous as the cobra's,” as Rudyard Kipling described it in The Jungle Book story, “Rikki-Tikki-Tavi.” Joe passed away the next day, and Conniff includes him (along with Gentry and Parker) in his “necrology,” a listing of the people who died while looking for new species. Joe collected many new species of reptiles and amphibians during his lifetime but had been proudest of the spitting cobra he discovered and named, Naja mandalayensis. So the allure of naming species lives on (or of having one named after you, as was the case after Joe's death: Bungarus slowinskii, a krait from Vietnam).

Slowinski, like Gentry and Parker and the taxonomists before them, worked with almost religious fervor despite the risks. Early naturalists had reason to believe their struggles would have an end, certain that the number of species would be limited. After all, how many creatures could fit on Noah's Ark? Describing species was therefore considered, as Conniff puts it, “one of the most important and enduring achievements of the colonial era,” and indeed by the mid 1800s, English biologist Richard Owen claimed that “nothing remained for naturalists but the business of classification and arrangement.”

Today, most estimates place the number of species on Earth at 10 million or more, about 2 million of which have been identified so far. With accelerating habitat loss, species are vanishing before our eyes—ironically, in most cases, even before a biologist manages to see them, let alone name them. Much has changed since Jefferson's quest for the mammoth: The concept of extinction has become part of the public awareness and an everyday reality. Because Conniff has focused on the origins of species collecting, his detailed narration ends in the early twentieth century. But as he says at the end of The Species Seekers, our loss of innocence about extinction makes the centuries-long obsessive mission of the field biologist, first set in motion by Linnaeus, as pressing as ever.

Mark W. Moffett "The Species Seekers: Heroes, Fools, and the Mad Pursuit of Life on Earth.," BioScience 61(10), (1 October 2011). https://doi.org/10.1525/bio.2011.61.10.13
Published: 1 October 2011
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