Books like this one, concerning human nature, are beacons for trouble. On one hand, everybody’s an expert. Being human, we all have opinions about human nature. Such an understanding seems to require little more than a modicum of common sense and some attention to our own incessant cravings and aversions. Simple enough.
But making sense of human nature is anything but simple. Human nature has been landscaped, replanted, weeded, fertilized, fenced off, seeded, and irrigated as intensively as any garden or seaside golf course. Human beings have been under cultivation longer than we’ve been cultivating anything else. Our cultures domesticate us for obscure purposes, nurturing and encouraging certain aspects of our behavior and tendencies while seeking to eliminate those that might be disruptive. Agriculture, one might say, has involved the domestication of the human being as much as of any plant or other animal.2
Our sense of the full range of human nature, like our diet, has been steadily reduced. No matter how nourishing it might be, anything wild gets pulled—though as we’ll see, some of the weeds growing in us have roots reaching deep into our shared past. Pull them if you want, but they’ll just keep coming back again and again.
What gets cultivated—in soil and minds—is not necessarily beneficial to the individuals in a given society. Something may benefit a culture overall, while being disastrous to the majority of the individual members of that society. Individuals suffer and die in wars from which a society may benefit greatly. Industrial poisons in the air and water, globalized trade accords, genetically modified crops ... all are accepted by individuals likely to end up losing in the deal.
This disconnect between individual and group interests helps explain why the shift to agriculture is normally spun as a great leap forward, despite the fact that it was actually a disaster for most of the individuals who endured it. Skeletal remains taken from various regions of the world dating to the transition from foraging to farming all tell the same story: increased famine, vitamin deficiency, stunted growth, radical reduction in life span, increased violence . little cause for celebration. For most people, we’ll see that the shift from foraging to farming was less a giant leap forward than a dizzying fall from grace.
If you ever doubt that human beings are, beyond everything, social animals, consider that short of outright execution or physical torture, the worst punishment in any society’s arsenal has always been exile. Having run short of empty places to exile our worst prisoners, we’ve turned to internal exile as our harshest punishment: solitary confinement. Sartre got it backwards when he proclaimed, “L’enfer, c’est les autres” (Hell is other people). It’s the absence of other people that is hellish for our species. Human beings are so desperate for social contact that prisoners almost universally choose the company of murderous lunatics over extended isolation. “I would rather have had the worst companion than no companion at all,” said journalist Terry Anderson, recalling
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his seven-year ordeal as a hostage in Lebanon.
Evolutionary theorists love to seek explanations for species’ most outstanding features: the elk’s antlers, the giraffe’s neck, the cheetah’s breakaway speed. These features reflect the environment in which the species evolved and the particular niche it occupies in this environment.
What’s our species’s outstanding feature? Other than our supersized male genitalia (see Part IV), we’re not very impressive from a physical perspective. With less than half our body weight, the average chimp has the strength of any four or five mustachioed firefighters. Plenty of animals can run faster, dive deeper, fight better, see farther, detect fainter smells, and hear tonal subtleties in what sounds like silence to us. So what do we bring to the party? What’s so special about human beings?
Our endlessly complex interactions with each other.
We know what you’re thinking: big brains. True, but our unique brains result from our chatty sociability. Though debate rages concerning precisely why the human brain grew so large so quickly, most would agree with anthropologist Terrence W. Deacon when he writes, “The human brain has been shaped by evolutionary processes that elaborated the capacities needed for language, and not just by a general demand for greater intelligence.”4
In a classic feedback loop, our big brains both serve our need for complex, subtle communication and result from it. Language, in turn, enables our deepest, most human feature: the ability to form and maintain a flexible, multidimensional, adaptive social network. Before and beyond anything else, Human beings are the most social of all creatures.
We have another quality that is especially human in addition to our disproportionately large brains and associated capacity for language. Perhaps unsurprisingly, it is also something woven into our all-important social fabric: our exaggerated sexuality.
No animal spends more of its allotted time on Earth fussing over sex than Homo sapiens—not even the famously libidinous bonobo. Although we and the bonobo both average well into the hundreds, if not thousands, of acts of intercourse per birth—way ahead of any other primate—their “acts” are far briefer than ours. Pair-bonded “monogamous” animals are almost always hyposexual, having sex as the Vatican recommends: infrequently, quietly, and for reproduction only. Human beings, regardless of religion, are at the other end of the libidinal spectrum: hypersexuality personified.
Human beings and bonobos use eroticism for pleasure, for solidifying friendship, and for cementing a deal (recall that historically, marriage is more akin to a corporate merger than a declaration of eternal love). For these two species (and apparently only these two species), nonreproductive sex is “natural,” a defining characteristic.
Does all this frivolous sex make our species sound “animalistic”? It shouldn’t. The animal world is full of species that have sex only during widely spaced intervals when the female is ovulating. Only two species can do it week in and week out for nonreproductive reasons: one human, the other very humanlike. Sex for pleasure with various partners is therefore more “human” than animal. Strictly reproductive, once-in-a-blue-moon sex is more “animal” than human. In other words, an excessively horny monkey is acting “human,” while a man or woman uninterested in sex more than once or twice a year would be, strictly speaking, “acting like an animal.”
Though many strive to hide their human libidinousness from themselves and each other, being a force of nature, it breaks through. Lots of upright, proper Americans were scandalized by the way Elvis moved his hips when he sang “rock and roll.” But how many realized what the phrase rock and roll meant? Cultural historian Michael Ventura, investigating the roots of African-American music, found that rock ‘n’ roll was a term that originated in the juke joints of the South. Long in use by the time Elvis appeared, Ventura explains the phrase “hadn’t meant the name of a music, it meant ‘to fuck.’ ‘Rock,’ by itself, had pretty much meant that, in those circles, since the twenties at least.” By the mid-1950s, when the phrase was becoming widely used in mainstream culture, Ventura says the disc jockeys “either didn’t know what they were saying or were too sly to admit what they knew.”