Preface
We will not serve what we do not love.
And we cannot love what we do not know.
–Loyal Rue, Everybody’s Story:
Wising Up to the Epic of Evolution
This is a love story.
Although I do indirectly refer to sexual, courtly, and platonic forms of love in these pages, I am mainly interested in telling the story of the complex animal attraction that includes yet reaches beyond our typical understandings of these feelings and our expressions of them. This inclusiveness is what distinguishes ecocentric or biotic love from anthrocentric or strictly human forms of love. Love in this deep sense describes humans, but it is also shared by and extended to other animals and to the environment. My wife Kim’s mother-love for our 16-month-old son Wilder is powerful and familiar, but so too is the pleasure she feels when she watches the sun rise in the mountains or crouches on a grassy river bank—fly rod in hand—sight-casting to brown trout as they devour mayflies in the late spring light. Wilder does not yet know the word love, but when he waves hello to the moon, or follows a honey bee from flower to flower as it probes for nectar, or points excitedly at an ant carrying a lace-wing like a panel of lead-paned glass, the expression on his face suggests he knows the feeling first-hand. Love and awe and wonder: they’re all wrapped up in his tiny body. I share his loves, of course, but I have others, too, like rain when I have shelter and fire when I am cold. I seek out rivers when I want to rejoin other life and remember my own. I eavesdrop on an alpine meadow; ponder a pod of killer whales hunting seals in the dark waters of the North Pacific; I savor the dark pink flesh of wild salmon when I am fortunate enough to eat it; and I am momentarily stunned by the ruby conflagration that is an Anna hummingbird’s throat when the sun hits it just right.
We take pleasure in and are attracted to certain things in part because we know their opposites. The sight of the rising sun and food give us pleasure because we know night and hunger. Thus, the attraction to which I refer is known just as much by what it isn’t as by what it is. The complex and deep-seated connections we have to the little piece of ground we call home should remind us that the world as a whole is a life-giving and loveable place, deserving of our most ardent interest and care. The connection springs from our primordial relationship with the physical world and it is therefore as much the province and provocation of science as it is the quandary of philosophers, the revelation of mystics, and the inspiration of poets and rock stars. It demands that we bring our entire being to bear on the question of what it really means to be human, to live better, and more wisely on what has become an increasingly imperiled planet. But to do this, we’ve got to do a better job of exploring and telling the truth about human nature and the nature of existence.
This is why our stories are so important. As the vehicles of our values, they teach us our place in this precious and difficult world. Humility, reverence, indifference, domination, and hostility are familiar themes in our individual and collective narratives. What is clear, however, is that regardless of the values we may communicate through our separate stories, we all will decide what kind of world we will inhabit, one that is characterized by its integrity, health, and diversity—including a humanity whose respect for the finite world is the guiding principle of our conduct—or a world of dust and impoverishment and horrific violence; life without birdsong, forests without a single bear-bed or spider web or uncontaminated drop of dew.
I enjoyed many natural wonders in my childhood, and I know life is worth living as long as these wonders remain. When I contemplate the dominant stories of North America, however, it does not seem to me that we have an especially enlightened view of nature and ourselves. The marketing slogan for the X Files—perhaps one of the most popular shows in the history of television, and which spawned a vast array of popular successors—is illustrative. It assured viewers that “The truth is out there.” If all we were talking about were preternatural plots and alien abductions and conspiracies, I wouldn’t think twice about the former show’s 25 million-member audience. But in the context of the real world, one that lives or dies by the truthfulness or the falseness of its stories, an audience of this magnitude is indeed unsettling, if only because the “truth” to which the show refers is not here, but “out there,” flying around in an alien spacecraft, or emblazoned in Moon tableau, hopelessly locked in enigmatic celestial writ. In reality, the truth may be unknown to us at the moment, but it is not alien, nor is it a conspiracy: It is we and we are it and it is everything, a vast community of species spread across the planet in a web of amazing variety and tantalizing complexity.
Fortunately, our scientific interests are many, and the world—our gorgeous, mysterious, and fleeting subject matter—is unquestionably real and accessible. (Who needs Martians when we can ponder the natural history of a marbled diving beetle, or the courtship behavior of the satin bowerbird?) Often times, however, we seem paralyzed by the world’s grandeur and mystery. Perhaps it is enough that we simply have these experiences of awe and wonder. Who cares what—if anything—really lies behind them? Why is it important that we know? Given our undeniable emergence from, connection to, and dependence on the environment, I think we are wise to ask these kinds of questions.
Having a robust sense of mystery is natural and necessary to realizing our potential, but when it distances us from the real challenges we face, it can be debilitating and destructive. This seems especially true when it comes to what might be described as unassailable mysteries, or those mysteries in which we readily believe but for which no evidence or data are available. Under these circumstances, enlightened solutions to our personal and collective struggles don’t come easy, if at all. Our belief in subjective truth may be personally fulfilling as far as our own definitions are concerned, but the belief may isolate us from other dimensions of ourselves and the world we inhabit. One of the claims I make in this book is that we are never more informed, fulfilled, and human than when we attend to our complex, wonderful, and sometimes troubling nature, particularly as it relates to the physical world.
But how can we possibly hope to understand such mind-boggling intricacy and complexity? What tool is best suited for the job? I share the long-standing, well-established, and widely accepted feeling that the epic of evolution is the truest means we have for addressing these questions. This is not a matter of pitting one story or world-view against another. It is a matter of rethinking our priorities in the context of what we know to be true about the planet and ourselves. If our morality includes a commitment to posterity, don’t we have an obligation to preserve the planet’s health and richness, the very conditions that make our lives and stories possible? If so, what on Earth is stopping us?
I explore these kinds of questions in various ways throughout the book, but let me offer two abbreviated and interrelated reasons for our apparent stubbornness. The first is that like most other organisms on the planet, we tend to be biologically conservative. Whether it comes to our ideas and the language we use to express them; our interests in music and food and mates; we usually stick with what we know—the “usual,” as one recent fast-food commercial put it—unless we are forced or think to do otherwise. I think most of us would agree that change is difficult for us and that beyond fulfilling our day-to-day needs, we guard our time and energy. That we are naturally conservative is also reflected by the relative simplicity of our major cultural and religious narratives, which appear to posit unassailable mystery as a condition of religious devotion and conviction.
Certainly some degree of demystification occurs when we use science to understand the natural world and ourselves, but does that make the subject—whatever it may be—any less amazing? I would argue that our increased understanding and knowledge of how things work not only makes the world more wonderful, but it enriches and empowers us to make better decisions about how to live in it. Science does not have all the answers, of course, and much remains unknown and mysterious to us, but instead of viewing the mysteries of existence as inscrutable, science views mystery as an impetus and invitation, in the same way that a puzzle is both mysterious and inviting when its pieces lay face-down and scattered on the floor.
I must say that as someone who is trying to figure out what I am and my place in this astonishing world, the notion of ghosts passing through walls or aliens crashing in the desert or gods intervening on behalf of certain humans and not others would be amusing if it weren’t so tragic. As I write this preface, the world is in the throes of an unprecedented environmental, social, and religious crisis. Within the last two months, 8,000 people of have been killed in sectarian violence in Syria. My journalist friend tells me that to date well over a 100,000 Iraqi civilians, many of them children, have lost their lives since the United States invaded Iraq. Now the focus is the war in Afghanistan, a conflict with no end in sight.
Here in the U.S., PBS closes the news hour each night with still photos of our dead, sometimes ten to fifteen at a time, the majority of whom are smooth-faced boys in their late teens and early twenties. Regardless of who dies, whether solider or civilian, war is a crime against humanity and is one of the single greatest, preventable failures of our species. This is to say nothing of the crimes we’ve committed, and continue to commit, against the nonhuman world in the name of progress. Writer Linda Hogan once commented on how our conflicts with the environment and with each other actually stem from the conflicts we have within ourselves. I think she’s right. I know that our reasons for doing what we do are complex, but if this is where our current stories have gotten us, I think we need new stories about our place in the world.
Scientists and naturalists have long been applying evolutionary theory to any number of different organisms in an effort to understand how they have come to live and behave in the ways they do. In recent years many of the hard, soft, and social sciences—including cellular biology, ecology, psychology, and sociology—have been reinvigorated by applying evolutionary theory. More importantly, perhaps, is that the humanities have been resuscitated (and, ultimately, grounded) by the publication of several works that show evolutionary theory’s relevance to the arts, religion, and other arguably transcendental and distinguishing characteristics of our species. In general, scientists and humanists who do science know that their theories are valuable to the extent that they can be tested and thus explain and predict phenomena. This is no less true for those working in the evolutionary sciences.
In fact, Darwin’s theory can be applied in any number of interesting, surprising, and worthwhile ways. The fact that my own approach is personal and speculative has not come without its risks and challenges. I do draw on current research throughout the book, but my goal has not been to argue a single claim and marshal a body of evidence in support of it. Instead, I use the personal narrative and memoir to tell the story of how Darwinian evolution might be used to improve and deepen our understanding of day-to-day life in all its forms. I knew going into this project that evidence would be crucial to at least a segment of my readership, for whom speculation without substantiation may not be satisfying. But I also know that no writer can be all things to all readers. We each do what we can, in other words. Having said that, and although I have not written a single word without thinking of how I might meet the expectations of both scientists and nonscientists alike, my main audience here is the general reader.
Years before I actually started the project, John Steinbeck alerted me to the challenges of applying the all-encompassing theory of Darwinian evolution. In Log from the Sea of Cortez he cites the “looseness” of nonteleological thinking, and warns how one must avoid the various hazards associated with so much freedom and flexibility. Fortunately for me, I have had some great teachers. Through my associations with Darwin scholar Bert Bender and biologist John Alcock, as well as through my own vigilance, I have made every effort to avoid distorting or confusing evolution’s possible relevance to our lives.
We are descended from humans who emerged during the Pleistocene period, so what we are as a species is the direct result of this ancient lineage. Therefore, if we wish to know more about our origins, we can begin by looking no further than the mirror. On the evolutionary timeline, then, each moment is the moment of the Pleistocene mind. I chronicle an expanse of time ranging from 37 (my age at the time of writing) to roughly 11 million years ago, which is around the time the Pleistocene Period began. Rather than starting at some point in the recent past and moving forward in time, I begin in the present and then gradually work my way back through deep history, which of course is where speculation proves very handy. I admit that speculation is far from certainty, but it is still inspired by at least some degree of evidence. Otherwise, on what grounds would anyone speculate? Call it a hunch. Although I do not often draw definitive conclusions, I am not unlike a detective who works his way backward using the evidence. Granted, I attempt to reconstruct events that may have happened thousands of years ago, and instead of examining hours-old corpses and ancient fossils, I look to the living for evidence of genetic events that have come to characterize the development and behavior of particular species.
When I mention genes, I’m guessing images of scientists in lab coats, microscopes, slides, and tiny glass vials come to mind. But there are other ways of gaining insights into existence. Provided one has a healthy sense of curiosity and a basic understanding of natural selection, one can make significant inroads in the search for self and other knowledge. Natural selection refers to the long-term process whereby survival-enhancing genes are selected over those genes that do not impart fitness benefits to their bearer. We might then think of ourselves and other creatures as survival machines that have taken thousands if not millions of years to refine. Therefore, when we look at our own bodies and behavior, and at the other organisms with which we share our lives, we are in effect seeing the culmination of this process. Suddenly the questions “How old are you?” or “Where are you from?” aren’t so easy to answer, are they?
Keeping in mind the complex co-evolution of genes (the biological unit of transmission) and memes (the cultural unit of transmission), we can also look to our cultures if we wish to gain insights into human nature. Human cultures have some important differences, but generally they are uniform due to their biological underpinnings. For example, human and other primate societies generally have strict taboos against incest, but it is also true that reproducing with closely related DNA is detrimental to genetic integrity and, ultimately, to genetic survival. In fact, primate studies have shown that siblings who are raised together for the first 30 months of life develop a sexual aversion to one another, suggesting what sociobiologists describe as an epigenetic rule or, in this case, a rule of inhibition.
It is this complementary relationship between genes and memes (the nature v. nurture dichotomy) that makes it possible to explore both the biological and the environmental implications of our stories, especially as they are expressed through and reflected by the arts and other human activities. Thus, in Part I of the book, Arachnophilia, I spend considerable time attending to the lives of several species of spider with which I share my yard, but I also lament how the stories told by our culture have really done a disservice to these remarkable creatures. Of course it’s always wise (and natural) to be mindful of potentially dangerous creatures (I can think of only a handful of spiders in North America that actually pose a significant threat to humans), but there is a crucial distinction between being mindful of and unnecessarily hostile toward other creatures which are, after all, simply trying to live their lives.
Over the course of about three months I studied a particular black widow that had made a home on the east side of my house. I learned a lot from her, but one of the more poignant realizations I had was how fundamentally similar all animals are in their day-to-day lives. Most of us never get beyond our differences of appearance, but if we did, we would see that our basic needs for food, safety, and shelter are essentially the same. How different species go about fulfilling their basic needs for resources and shelter is truly amazing. Habitat theory, which is the subject of Part II of this book, argues that animals select habitats on the basis of how well they fulfill our biological needs for prospects and refuge.
For example, we have a mature orange tree in our back yard, and for the last week or so a pair of mockingbirds has been busy constructing a nest in the tree’s inner reaches. What I find so interesting is that in the three years we have lived here, I have never seen any birds nest in the tree. Our two cats patrol the yard, so I’ve always assumed that the birds opted not to nest so close to predators. But here these birds were, building away. What had changed? The answer to this question was suggested to me by another bird, the curved-bill thrasher. Each afternoon a pair of thrashers would spend an hour or so rummaging through the leaf litter and rocks beneath the orange tree. I quickly realized what they were looking for: we have two box turtles and the female had laid her eggs beneath the tree. I don’t know if the thrashers were actually digging down to the eggs themselves, but I do know that they and other birds enjoy the mucus plumes that signal the location of the eggs.
Many species of bird have their chicks in the spring, a time during which protein is in high demand. Animals must balance their needs for resources and safety, so I’m guessing that for the mockingbirds the benefit of the resource outweighed the apparent cost or risk of nesting so close to predators. I imagine that living above the turtle protein would be a little like living above a butcher shop. All similes aside, animals—birds, humans, and even black widows—are generally attracted to habitats that put them in proximity to resources while at the same time minimizing risks to themselves and to their offspring.
One of the reasons habitat theory is so interesting and useful from a human perspective is that it informs our ideas about beauty and aesthetics. In addition to speculating about how the theory might explain my own habitat selection and, as it turns out, creation (I’ve spent hours beautifying our yard), I also cite recent research, including exhaustive studies of landscape paintings, which suggests a biological—as opposed to a strictly cultural—basis for our aesthetics. While environments can evoke complex and sometimes conflicting psychological responses, the studies and my own research show we generally find beautiful environments that signal prospects and refuge, whereas we usually have negative responses to environments that do not. This helps to explain why the landscape painter Thomas Kincade is a multi-millionaire as well as why people who are unfamiliar with deserts often have difficulty thinking of them as beautiful.
In the third and final part of the book, Implications of an Ecochildhood, I reflect on my experience growing up in the deep woods of northern Maine and, later, in the high deserts of Utah, where I spent hours engaged in various outdoor activities, including hide-and-seek, fort building, stick fighting, and hunting. I don’t think anyone would argue with the notion that domestic kittens are predisposed to stalk one another in part because it helps them develop the skills necessary to procure their own food later in life. Thus, to the extent a kitten’s interest in stalking helps to ensure she will reach reproductive age, the behavior might be described as adaptive. I therefore began to wonder if my own and, by extension, other children’s play interests aren’t also adaptive. If so, might this not give us a richer understanding of play’s importance and complexity, as well of the need to preserve and create sites for that play?
Playing tag and rock fighting might both be described as adaptive behaviors, but obviously we are likely to encourage our children to play tag, whereas we forbid them to rock fight. That said, we risk missing the point altogether when we label these behaviors (or kids) “good” or “bad.” For isn’t our ability to effectively address these tendencies among children and ourselves contingent on our understanding of those tendencies? That’s another thing I love about Darwinian evolution: used honestly, it serves everyone or no one; includes everything or nothing; it embraces our finest moments and our worst; it is awareness in the deepest and truest sense. The question is do we have the courage to seek out this knowledge and the wisdom to live by it once it’s found.

