The Triumph of Seeds

How Grains, Nuts, Kernels, Pulses, and Pips Conquered the Plant Kingdom and Shaped Human History


By Thor Hanson

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As seen on PBS’s American Spring LIVE, the award-winning author of Buzz and Feathers presents a natural and human history of seeds, the marvels of the plant kingdom.

“The genius of Hanson’s fascinating, inspiring, and entertaining book stems from the fact that it is not about how all kinds of things grow from seeds; it is about the seeds themselves.” — Mark Kurlansky, New York Times Book Review

We live in a world of seeds. From our morning toast to the cotton in our clothes, they are quite literally the stuff and staff of life: supporting diets, economies, and civilizations around the globe. Just as the search for nutmeg and pepper drove the Age of Discovery, coffee beans fueled the Enlightenment and cottonseed sparked the Industrial Revolution. Seeds are fundamental objects of beauty, evolutionary wonders, and simple fascinations. Yet, despite their importance, seeds are often seen as commonplace, their extraordinary natural and human histories overlooked. Thanks to this stunning new book, they can be overlooked no more. This is a book of knowledge, adventure, and wonder, spun by an award-winning writer with both the charm of a fireside story-teller and the hard-won expertise of a field biologist. A fascinating scientific adventure, it is essential reading for anyone who loves to see a plant grow.


Seeds Nourish

              Oats, peas, beans and barley grow,

              Oats, peas, beans and barley grow,

              Can you or I or anyone know

              How oats, peas, beans and barley grow?

              First the farmer sows his seed,

              Stands erect and takes his ease,

              He stamps his foot and claps his hands,

              And turns around to view his lands.

—Traditional folk song


Seed for a Day

            I have great faith in a seed. Convince me that you have a seed there, and I am prepared to expect wonders.

—Henry David Thoreau,

The Dispersion of Seeds (1860–1861)

When a pit viper strikes, physics tells us it can’t lunge forward farther than the length of its own body. The head and front end are agile, but the tail of the beast stays put. Anyone who has been struck at, however, knows that these snakes can fly through the air like Zulu spears, or the daggers thrown in ninja movies. The one coming at me darted up from a mat of dead leaves, launching itself at my boot in a lightning blur of fangs and intent. I recognized it as a fer-de-lance, a snake famed throughout Central America for its unfortunate combination of strong venom and a short temper. In this individual’s defense, however, I must confess that I had been poking it with a stick.

Surprisingly, the study of rainforest seeds can involve a lot of snake-poking. There is a simple explanation for this: science loves a straight line. Lines, and the relationships they imply, pop up everywhere, from chemistry to seismology, but for biologists the most common line of all is the transect. Whether one is counting seeds, surveying kangaroos, spotting butterflies, or searching for monkey dung, following an arrow-straight transect across the landscape is often the best way to make unbiased observations. They’re great because they sample everything in their path, cutting directly through swamps, thickets, thorn bushes, and anything else we might otherwise prefer to avoid. They’re also horrible because they sample everything in their path, cutting directly through swamps, thickets, thorn bushes, and anything else we might otherwise prefer to avoid. Including snakes.

FIGURE 1.1.   A fer-de-lance (Bothrops asper). Anonymous (nineteenth-century). REPRODUCTION © 1979 BY DOVER PUBLICATIONS.

Ahead of me, I heard the ring of machete on vine as my field assistant, José Masis, slashed us a path through the latest jungle impediment. I had time to listen because the snake, having missed my boot by inches, did something extremely disconcerting. It disappeared. The mottled browns of a fer-de-lance’s back make an excellent camouflage, and I never would have seen so many of them—not to mention eyelash vipers, hog-nosed pit vipers, and the occasional boa constrictor—if I hadn’t been diligently walking straight lines through the forest, bent low to the ground, rummaging through the leaf mulch. Some transects seemed to hold more snakes than seeds, and José and I developed techniques for nudging them out of the way or even lifting them on sticks and tossing them gently aside. Now, with an angry, invisible viper somewhere at my feet, new questions emerged. Was it best to stand still and hope the snake wasn’t repositioning itself for another strike? Or should I run, and if so, in which direction? After a tense minute of indecision I ventured a step, then two. Soon I had resumed my seed transect without incident (though not before cutting myself a much longer snake-poking stick).

Scientific research often combines moments of excitement and discovery with long periods of monotonous repetition. More than an hour passed before my slow searching turned up the day’s reward. There, directly in the path before me, sprouted a seedling of the great almendro, a towering tree whose fascinating natural history had drawn me to this rainforest in the first place. Though unrelated to the nut trees of North America and Europe, the name translates to “almond,” a reference to the fatty seeds at the center of each fruit. I noted the tiny plant’s size and location in my field book, and then crouched down for a closer look.

FIGURE 1.2.   The sprouting seed of an almendro tree (Dipteryx panamensis). PHOTO © 2006 BY THOR HANSON.

The seed’s shell, so difficult to open in the lab, lay upended in halves, neatly split by the pressure of the growing sprout. A dark stem arched downward into the soil, and above it two seed leaves had begun to unfurl. They looked impossibly green and tender, a rich meal for the pale shoot just visible between them. Somehow, this tiny speck had the potential to reach the forest canopy far above me, its first steps fueled entirely by the energy of the seed. That same story repeated itself everywhere I looked. Plants lay at the heart of the rainforest’s great diversity, and the vast majority of them had started out exactly this same way, the gift of a seed.

For the almendro, the transformation from seed to tree seemed particularly incredible. Mature individuals often exceed 150 feet (45 meters) in height, with buttressed trunks 10 feet (3 meters) across at the base. They live for centuries. Their iron-hard wood is known to dull or even break chainsaws, and when they flower, vivid purple blossoms festoon their crowns and rain down to carpet the ground below. (In my first scientific presentation on the tree, I lacked a decent photo of its flowers, but got the point across with the closest approximation of the color that I could find: a Marge Simpson wig.) Almendro trees produce so much fruit they are considered a keystone species, vital to the diets of everything from monkeys to squirrels to the critically endangered Great Green Macaw. Their loss could alter the ecology of a forest, leading to a cascade of changes, and even to local extinctions for the species that depend upon them.

I was studying the almendro because throughout its range, from Colombia north to Nicaragua, the tree has faced increasing challenges as forests have been cleared for ranching and agriculture, and as demand has increased for its dense, high-quality timber. My research focused on the survival of almendros in Central America’s rapidly developing rural landscape. Could it persist in small fragments of rainforest? Would the flowers still be pollinated, the seeds be dispersed, and the next generations be genetically viable? Or were the majestic old trees that were now isolated in pastures and forest patches merely “the living dead”? If these giants couldn’t reproduce successfully, then all of their complex relationships with other forest species would begin to unravel.

The answers to my questions lay in the seeds. So long as José and I could find enough of them, their genetics could tell us the rest of the story. Every seed and seedling we encountered held clues about its parents coded into its DNA. By carefully sampling and mapping them in relation to the adult almendros, I hoped to find out just which trees were breeding, where their seeds were going, and how those things changed as the forest was carved into fragments. The project lasted for years and involved six trips to the tropics, thousands of specimens, and countless hours in a laboratory. At the end I had a dissertation, several journal articles, and some surprisingly hopeful news about the future of the almendro tree. But only after all the samples were analyzed, the papers written, and the diploma delivered did I realize that something fundamental was missing. I still didn’t really understand how seeds worked.

Years passed, other research projects came and went, but still this mystery puzzled me. While everyone from gardeners and farmers to the characters in children’s books trust that seeds will grow, what makes it happen? What lies inside those neat packages just waiting for the spark to build a new plant? When I finally decided to get to the bottom of these questions, my mind immediately pictured that sprouting almendro tree, and how every part of its big seed was clearly visible, like the image in a textbook. Popping down to Costa Rica to find a fresh one was out of the question, but almendro is far from the only species with large, easily sprouted seeds. In fact, nearly any grocery store, fruit stand, or Mexican restaurant keeps the big seeds (and surrounding fruit) of at least one rainforest tree always in good supply.

FIGURE 1.3.   Domesticated in Mexico and Central America over 9,000 years ago, avocados were long established in local diets by the time of the Aztec feast pictured here. Anonymous (Florentine Codex, late sixteenth century). WIKIMEDIA COMMONS.

In a brilliant piece of casting work, the title role for the movie “Oh, God!” went to George Burns. When asked about his greatest mistakes, the Burns-almighty deadpanned a quick response, “Avocados. I should have made the pits smaller.” Sous-chefs in charge of guacamole would certainly agree, but to botany teachers around the world, the avocado pit is perfect. Inside its thin brown skin, all the elements of the seed are laid out in large format. Anyone wanting a front-row seat for a lesson on germination needs nothing more than a clean avocado pit, three toothpicks, and a glass of water. The simplicity of it was not lost on early farmers, who domesticated the avocado at least three different times from the rainforests of southern Mexico and Guatemala. Long before the rise of the Aztecs or the Mayans, people in Central America already enjoyed a diet rich with the creamy flesh of avocado. I enjoyed it, too, binging on a spree of delicious sandwiches and nachos in preparation for my experiment. With a dozen fresh pits and a handful of toothpicks, I headed for the Raccoon Shack to get started.

The Raccoon Shack sits in our orchard, an old shed sided with tar paper and scrap lumber, and named for its former inhabitants. The raccoons once made an easy living there, gorging themselves on our apple harvest every fall. We had to give them notice, however, when parenthood suddenly required me to find an office space outside the confines of our small home. The shack now boasts power, a woodstove, a hose spigot, and plenty of shelf space—everything I might need to coax my avocados to life. But I wanted more than germination; I knew to expect roots and greenery. What I needed was to understand just what inside that seed was making it all happen, and how such an elaborate system evolved in the first place. Fortunately, I knew just the people to talk to.

Carol and Jerry Baskin met on the first day of graduate school at Vanderbilt University, where they both enrolled to study botany in the mid-1960s. “We started dating right away,” Carol told me, so they were seated next to one another when the professor came around assigning research topics. In pairs. “That was special because it was the first time we worked together,” she remembered. It also marked the first time they turned their minds to a topic that would define their careers. Though they insist that their romance was typical—mutual friends, similar interests—there has been nothing standard about the intellectual partnership it fostered. Carol finished her doctorate a year ahead of Jerry, but they’ve been pretty much in synch ever since, publishing more than 450 scientific articles, chapters, and books on seeds. For a guided tour of an avocado pit, no one on the planet could have better credentials.

“I tell my students that a seed is a baby plant, in a box, with its lunch,” Carol said at the start of our conversation. She speaks with a southern drawl and has a casual way of explaining things, talking around the edges of difficult concepts until the answers seem to reveal themselves. It’s easy to see why students rank her among the best science teachers at the University of Kentucky. I reached Carol by phone in her office, a windowless room where piles of papers and books cover every surface and overflow into the lab next door. (Jerry had recently retired from the same department, which apparently involved moving his piles of books and papers home to their kitchen table. “There are just two little clear places where we eat,” Carol laughed. “It’s a problem if we want to have company.”)

With her “baby in a box” analogy, Carol neatly captured the essence of seeds: portable, protected, and well-nourished. “But because I’m a seed biologist,” she went on, “I like to take things a step further: some of those babies have eaten all their lunch, some have eaten part of it, and some haven’t even taken a bite.” Now Carol opened a window onto the kinds of complexities that have kept her and Jerry fascinated for nearly five decades. “Your avocado pit,” she added knowingly, “has eaten all of its lunch.”

A seed contains three basic elements: the embryo of a plant (the baby), a seed coat (the box), and some kind of nutritive tissue (the lunch). Typically, the box opens up at germination, and the embryo feeds on the lunch while it sends down a root and sprouts up its first green leaves. But it’s also common for the baby to eat its lunch ahead of time, transferring all of that energy to one or more incipient leaves called seed leaves, or cotyledons. These are the familiar halves of a peanut, walnut, or bean—embryonic leaves so large they take up most of the seed. As we were talking, I plucked an avocado pit from the pile on my desk and split it open with my thumbnail. Inside, I could see what she meant. The pale, nut-like cotyledons filled each half, surrounding a tiny nub that held the fledgling root and shoot. For a seed coat, the pit offered little more than varnish—thin, papery stuff that was already flaking off in brown sheets.

“Jerry and I study how seeds interact with their environment,” Carol said. “Why seeds do what they do when they do it.” She went on to explain that the avocado’s strategy is somewhat unusual. Most seeds dry out as they ripen, using a thick, protective coat to keep moisture at bay. Without water, the embryo’s growth slows to a near standstill, a state of arrested development that can persist for months, years, or even centuries until conditions are right for germination. “But not avocados,” she warned. “If you let those pits dry out, they’ll die.” The way Carol said this reminded me that my avocado pits were living things. Like all seeds, they are live plants that have simply put development on pause, waiting until they land in just the right place, at just the right time, to send down roots and grow.

FIGURE 1.4.   Avocado (Persea americana). Inside the paper-thin seed coat of an avocado pit, two massive seed leaves surround a tiny nub containing the root and shoot. Avocados evolved in a rainforest, where young trees need a large dose of seed energy to sprout and get established in deep shade. ILLUSTRATION © 2014 BY SUZANNE OLIVE.

For an avocado tree, the right place is somewhere its seeds will never desiccate and the season is always right for sprouting. Its strategy relies on constant warmth and dampness, conditions you might find in a tropical rainforest—or suspended over a glass of water in the Raccoon Shack. With no need to survive long droughts or cold winters, avocado seeds take only the briefest pause before trying to grow again. “The avocado’s dormancy may simply be the time necessary for the process of germination to take place,” Carol explained, “which shouldn’t be all that long.”

I tried to keep that in mind during the slow weeks before my avocado pits showed any signs of life. They became my silent, unchanging companions: two rows of mute brown lumps lined up on a bookshelf below the window. Although I have an advanced degree in botany, I also have a long history of killing houseplants, and I began to fear for them. But like any good scientist, I took comfort in data, filling an elaborate spreadsheet with numbers and notes. Though nothing ever changed, there was a certain satisfaction in handling every seed, dutifully monitoring its weight and dimensions.

When it happened, I didn’t believe it. After twenty-nine inert days, Pit Number Three gained weight. I recalibrated the scale, but there it was again, the most encouraging tenth of an ounce I’ve ever measured. “Most seeds take up water right before they germinate,” Carol confirmed, a process cheerfully known as imbibing. Why it often takes so long is the subject of debate. In some cases, water may need to breach a thick seed coat or wash away chemical inhibitors. Or the reason may be more subtle—part of a seed’s strategy to differentiate brief rain showers from the sustained dampness necessary for plant growth. Whatever the reason, I felt like pouring a libation for myself as, one after another, all my avocado pits began doing it. Outwardly they looked the same, but inside, something was definitely going on.

“We know a little bit about what’s happening in there, but not everything,” Carol admitted. When a seed imbibes, it sets off a complex chain of events that launches the plant from dormancy straight into the most explosive growth period of its life. Technically, germination refers only to that instant of awakening between water uptake and the first cell expansion, but most people use the term more broadly. To gardeners, agriculturalists, and even the authors of dictionaries, germination includes the establishment of a primary root and the first green, photosynthetic leaves. In that sense, the seed’s work isn’t done until all of its stored nutrition is used up—that is, transferred to an independent young plant capable of making its own food.

My avocados had a long way to go, but within days the pits began splitting apart, their brown halves tilted outward by the swelling roots within. From a tiny nub in the embryo, each primary root grew at an astonishing pace—a pale, seeking thing that plunged downward and tripled in size in a matter of hours. Long before I saw any hint of greenery, every pit boasted a healthy root stretching to the bottom of its water glass. This was no coincidence. While other germination details vary, the importance of water is constant, and young plants place top priority on tapping a steady source. In fact, seeds come prepackaged for root growth—they don’t even need to make new cells to do it. That may sound hard to believe, but it’s similar to what clowns do with balloons all the time.

Scrape the side of a fresh avocado root, and you’ll get thin, curly strips like the radish shavings on a fancy salad. I placed one of these under my microscope and saw lines of root cells in sharp relief—long, narrow tubes that looked a lot like the balloons a clown might use to tie animal shapes. And just like a clown, the embryonic roots stuffed inside of seeds know that you don’t show up to a party with your balloons already inflated. Even oversized clown pockets couldn’t possibly hold enough. Empty balloons, on the other hand, take up no space at all and can simply be filled with air (or water) whenever and wherever the need arises.

The difference in size between empty and inflated balloons is actually quite astounding. A standard package of “Schylling Animal Refills” from my local toy store contains four greens, four reds, five whites, and assorted blues, pinks, and oranges, for a total of twenty-four balloons. Deflated, they fit easily into my cupped hand: a bright, rubbery bundle less than three inches (seven and one-half centimeters) across. Once I began blowing them up, I quickly appreciated why any good clown also travels with a helium tank or a portable air compressor. Lightheaded and wheezing, I tied the last balloon forty-five minutes later and sat surrounded by a riot of color. The balloons now formed a squeaking, unruly pile four feet (one and one-quarter meters) long, two feet (sixty centimeters) wide, and a foot (thirty centimeters) tall. Lined up end to end, they stretched from my desk out the door, across the orchard, through the gate, and onto the lane, for a total of ninety-four feet (twenty-nine meters). Their volume had risen by a factor of nearly 1,000, with the potential to form a skinny tube 375 times longer than the rubbery ball I’d started with—all from the addition of air. Give water to a seed, and its root cells will fill to do virtually the same thing, stretching longer and longer as they inflate. The process can last for hours or even days—a massive burst of growth before the cells at the tips even bother dividing to make new material.

Seeking out water is an understandable plant priority. Without it, growth stalls, photosynthesis sputters, and nutrients can’t be liberated from the soil. But seeds can have subtler reasons to start growing this way, and no example makes that case better than coffee. As everyone with an early-rising toddler knows, coffee beans contain a potent and very welcome blast of caffeine. But while it may be stimulating to weary mammals, caffeine is also known for getting in the way of cell division. In fact, it stops the process cold, a tool so effective that researchers use caffeine to manipulate the growth of everything from spiderworts to hamsters. In a coffee bean, this trait does wonders to maintain dormancy, but it poses a distinct problem when it’s finally time to germinate. The solution? Sprouting coffee seeds shunt their imbibed water to both root and shoot, swelling them rapidly to propel their growing tips safely away from the stifling effects of the caffeinated bean.

Avocado pits contain a few mild toxins to ward off pests, but nothing that slows things down once the game is afoot. I watched the roots grow and branch for days before the first greenery appeared, a tiny shoot emerging from the widening crack at the top of each pit. “It’s accurate to call the next phase a massive transfer of energy from the cotyledons,” Carol told me, explaining how what started out as the seed’s “lunch” would now fuel a surge of upward growth. Within a few weeks, I found myself the caretaker not of seeds, but of saplings, young trees that bore little resemblance to the pits I’d nurtured for months. As a parent, I was reminded of the many transformations I’d already witnessed in young Noah’s life, and something that Carol had mentioned suddenly struck me. Early in their careers, she and Jerry had decided they were just too busy to have children. In studying seeds, I now realized, they had nonetheless devoted themselves to the fickle lives of babies.

The Baskins’ decades of work illustrate just how much there is to learn about what happens inside a germinating seed. Questions raised over 2,000 years ago by Theophrastus, “the father of botany,” continue to challenge scientists. As Aristotle’s student and successor, Theophrastus led exhaustive plant studies at the Lyceum, publishing books that remained definitive for centuries. Working on everything from chickpeas to frankincense, he described germination in great detail, wondering about seed longevity as well as differences “in the seeds themselves, in the ground, in the state of the atmosphere, and in the season at which each is sown.” In the long years since, researchers have unraveled many of the processes guiding dormancy, awakening, and growth. It is well established that germinating seeds imbibe water and extend their roots and/or shoots through cell expansion. This stage is followed by rapid cell division fueled by the energy in their food reserves. But the exact cues that trigger and coordinate these events retain an aura of mystery.

Germination chemistry alone involves a huge variety of reactions as the dormant metabolism comes to life, producing all the hormones, enzymes, and other compounds necessary to transform stored food into plant material. For avocados, that stored food includes everything from starch and protein to fatty oils and pure sugar—a mixture so rich that nurseries don’t even bother with fertilizers until well beyond the seedling stage. Transferring my young trees to potting soil, I noticed their cotyledons still clinging to the bases of the stems like pairs of upraised hands. Months or even years after rooting and leafing out, young avocado trees can still eke out a trickle of energy from the lunches their mothers packed. It’s no coincidence that an avocado endows its offspring so generously. Like almendros, avocados evolved to sprout in the deep shade of a rainforest, where light is scarce and where massive food reserves can give the seedlings a distinct advantage. Their story (and their seeds) would be entirely different if they had hailed from deserts or high mountain meadows, places where every young plant has a quick path to full sun.


  • "A fascinating, inspiring, and entertaining book.... Hanson takes one of the least-impressive-looking natural objects and reveals a life of elegance and wonder."—Mark Kurlansky, New York Times Book Review
  • "[An] engaging book.... What makes The Triumph of Seeds more than a routine pop botany book is the way Mr. Hanson teases out the resonances between the ways that plants and humans use seeds.... [A] lively and intelligent book."—Richard Mabey, WallStreet Journal
  • "[A] rip-roaring read."—Robert Krulwich, NationalGeographic's Curiously Krulwich blog
  • "With light, engaging prose Hanson shows how the little spheroids we tip out of a packet are in fact supremely elegant genetic time capsules.... You will never be able to look at an orange pip or a sunflower seed in the same way again."—New Scientist
  • "Thor Hanson has taken the history and science of these little marvels and drawn out a fascinating account of seed culture."—Home Wet Bar blog
  • "This is a charming book, inspired by Hanson's forays into seed identification and dispersal with his young, seed-obsessed son.... Hanson's twist of looking at human interactions with plants in their embryonic stage is new.... The Triumph of Seeds will engender thoughtful consideration of our joint future."
  • "[A] delight. Composed in charming and lively prose, the book introduces readers to a variety of quirky figures - biologists, farmers, archaeologists and everyday gardeners - who have something profound to say about a seemingly mundane topic: those little kernels that, against tremendous odds, have managed to take root all around us.... The Triumph of Seeds is a remarkable, gentle and refreshing piece of work that draws readers further into the wide arms of the world and makes them grateful for it."
  • "[F]ast and fascinating prose.... Hanson, who has also chronicled feathers and gorillas, is a conservation biologist and Guggenheim fellow, and an ace dot-connector: He can draw a line between all the grain panics and crises and the tiny, miraculous structure of the seeds themselves, because he dives deeply into botany, economy and history. Also, he's just plain fun."—Denver Post
  • "[Hanson is] jocular and entertaining in his dispensing of remarkable facts about these little vessels of life-to-be.... From high-tech, high-security seed banks bracing for climate change to the story of the gum extracted from guar seeds that is used in everything from ice cream to fracking, this upbeat and mind-expanding celebration of the might of seeds is popular science writing at its finest."—Booklist, starred review
  • "Who knew that seeds could be so thrilling and dangerous? Thor Hanson is a lively storyteller, a lyrical writer, and a quick wit. The Triumph of Seeds is more than an engrossing work of natural history. It's a compelling and highly entertaining journey, populated by scientists and historians, criminals and explorers, aviators and futurists. Following Hanson's global voyage is the best sort of armchair travel, because it is filled with wonder, poetry, and discovery."—Amy Stewart, author of TheDrunken Botanist: The Plants That Create the World's Great Drinks, a NewYork Times Bestseller
  • "This beautifully written book is a magnificent read. Every page is full of surprises and illuminating insights, illustrating the fascinating evolution of seeds, and their extraordinary impact on humans, past and present. A master storyteller, Hanson has created a first-rate natural history. When you reach the end of this page-turner, you will wish there were more...and you will never look at seeds in the same way."—Eric Jay Dolin, author of Leviathan:The History of Whaling in America and When America Met China: An ExoticHistory of Tea, Drugs, and Money in the Age of Sail
  • "As he did in his phenomenal Feathers, Thor Hanson brings us the incredible world of seeds in a package as graceful and elegant as they are themselves, gift-wrapped in utterly seductive stories. I cannot recall a book I was so eager to finish, that I might begin it again."—Robert Michael Pyle, authorof Wintergreen and Mariposa Road
  • "If you eat seeds of any kind, you must read this book! Ecologist Hanson gives us a rich Darwinian view of how seeds came to be the most important nutritional resource for human as well as older than human species. He is at his best when we are in the field with him, learning like detectives the 'whodunnits' of seed dispersal. You will never look a seed in the eye again without thanking Thor."—Gary Paul Nabhan,Franciscan brother and author of Enduring Seeds and Food, Genes, andCulture
  • "Thor has done it again. In a page-turner, he tells the stories of seeds, their ecology, evolution and histories and why each of us every day depends on, relies on, delights in or suffers from seeds. This book will change the way you think about your coffee, your chocolate or even just the weed growing stubbornly (from a seed) out of the crack in the sidewalk. Seeds are everywhere--a reality that you will never forget again after reading this book."—Rob Dunn, author of TheWild Life of Our Bodies

On Sale
Mar 24, 2015
Page Count
288 pages
Basic Books

Thor Hanson

About the Author

Thor Hanson is a conservation biologist, Guggenheim Fellow, and author of award winning books including Buzz, Feathers, The Impenetrable Forest, and The Triumph of Seeds. He lives with his wife and son on an island in Washington State.

Learn more about this author