Radiometric dating of nearby rocks indicated the skeleton, classified as Ardipithecus ramidus, was 4.4 million years old, more than a million years older than "Lucy," then the oldest known human ancestor. The findings challenged many assumptions about human evolution--how we started walking upright, how we evolved our nimble hands, and, most significantly, whether we were descended from an ancestor that resembled today's chimpanzee--and repudiated a half-century of paleoanthropological orthodoxy.Fossil Men is the first full-length exploration of Ardi, the fossil men who found her, and her impact on what we know about the origins of the human species. It is a scientific detective story played out in anatomy and the natural history of the human body. Kermit Pattison brings into focus a cast of eccentric, obsessive scientists, including one of the world's greatest fossil hunters, Tim White--an exacting and unforgiving fossil hunter whose virtuoso skills in the field were matched only by his propensity for making enemies; Gen Suwa, a Japanese savant who sometimes didn't bother going home at night to devote more hours to science; Owen Lovejoy, a onetime creationist-turned-paleoanthropologist; Berhane Asfaw, who survived imprisonment and torture to become Ethiopia's most senior paleoanthropologist and who fought for African scientists to gain equal footing in the study of human origins; and the Leakeys, for decades the most famous family in paloanthropology.An intriguing tale of scientific discovery, obsession and rivalry that moves from the sun-baked desert of Africa and a nation caught in a brutal civil war, to modern high-tech labs and academic lecture halls, Fossil Men is popular science at its best, and a must read for fans of Jared Diamond, Richard Dawkins, and Edward O. Wilson.

    Wild species, too, are escaping warming seas and desiccated lands, creeping, swimming, and flying in a mass exodus from their past habitats. News media presents this scrambling of the planet's migration patterns as unprecedented, provoking fears of the spread of disease and conflict and waves of anxiety across the Western world. On both sides of the Atlantic, experts issue alarmed predictions of millions of invading aliens, unstoppable as an advancing tsunami, and countries respond by electing anti-immigration leaders who slam closed borders that were historically porous.But the science and history of migration in animals, plants, and humans tell a different story. Far from being a disruptive behavior to be quelled at any cost, migration is an ancient and lifesaving response to environmental change, a biological imperative as necessary as breathing. Climate changes triggered the first human migrations out of Africa. Falling sea levels allowed our passage across the Bering Sea. Unhampered by barbed wire, migration allowed our ancestors to people the planet, catapulting us into the highest reaches of the Himalayan mountains and the most remote islands of the Pacific, creating and disseminating the biological, cultural, and social diversity that ecosystems and societies depend upon. In other words, migration is not the crisis--it is the solution.Conclusively tracking the history of misinformation from the 18th century through today's anti-immigration policies, The Next Great Migration makes the case for a future in which migration is not a source of fear, but of hope.

    In 1969 we even walked on the moon. And yet as late as 2000, the earth’s deepest cave—the supercave—remained undiscovered. This is the story of the men and women who risked everything to find it, earning their place in history beside the likes of Peary, Amundsen, Hillary, and Armstrong. In 2004, two great scientist-explorers are attempting to find the bottom of the world. Bold, heroic American Bill Stone is committed to the vast Cheve Cave, located in southern Mexico and deadly even by supercave standards. On the other side of the globe, legendary Ukrainian explorer Alexander Klimchouk—Stone’s polar opposite in temperament and style, but every bit his equal in scientific expertise, physical bravery, and sheer determination—has targeted Krubera, a freezing nightmare of a supercave in the Republic of Georgia, where underground dangers are compounded by the horrors of separatist war in this former Soviet republic.

    Seized by the reports, American diplomat John Lloyd Stephens and British artist Frederick Catherwood—both already celebrated for their adventures in Egypt, the Holy Land, Greece, and Rome—sailed together out of New York Harbor on an expedition into the forbidding rainforests of present-day Honduras, Guatemala, and Mexico. What they found would upend the West’s understanding of human history.In the tradition of Lost City of Z and In the Kingdom of Ice, former San Francisco Chronicle journalist and Pulitzer Prize finalist William Carlsen reveals the remarkable story of the discovery of the ancient Maya. Enduring disease, war, and the torments of nature and terrain, Stephens and Catherwood meticulously uncovered and documented the remains of an astonishing civilization that had flourished in the Americas at the same time as classic Greece and Rome—and had been its rival in art, architecture, and power. Their masterful book about the experience, written by Stephens and illustrated by Catherwood, became a sensation, hailed by Edgar Allan Poe as “perhaps the most interesting book of travel ever published” and recognized today as the birth of American archaeology. Most important, Stephens and Catherwood were the first to grasp the significance of the Maya remains, understanding that their antiquity and sophistication overturned the West’s assumptions about the development of civilization.By the time of the flowering of classical Greece (400 b.c.), the Maya were already constructing pyramids and temples around central plazas. Within a few hundred years the structures took on a monumental scale that required millions of man-hours of labor, and technical and organizational expertise. Over the next millennium, dozens of city-states evolved, each governed by powerful lords, some with populations larger than any city in Europe at the time, and connected by road-like causeways of crushed stone. The Maya developed a cohesive, unified cosmology, an array of common gods, a creation story, and a shared artistic and architectural vision. They created stucco and stone monuments and bas reliefs, sculpting figures and hieroglyphs with refined artistic skill. At their peak, an estimated ten million people occupied the Maya’s heartland on the Yucatan Peninsula, a region where only half a million now live. And yet by the time the Spanish reached the “New World,” the Maya had all but disappeared; they would remain a mystery for the next three hundred years.Today, the tables are turned: the Maya are justly famous, if sometimes misunderstood, while Stephens and Catherwood have been nearly forgotten. Based on Carlsen’s rigorous research and his own 1,500-mile journey throughout the Yucatan and Central America, Jungle of Stone is equally a thrilling adventure narrative and a revelatory work of history that corrects our understanding of Stephens, Catherwood, and the Maya themselves.

    The author argues for the preservation of the time and space in which to walk in an ever more car-dependent and accelerated world.

    John Huth asks what is lost when modern technology substitutes for our innate capacity to find our way. Encyclopedic in breadth, weaving together astronomy, meteorology, oceanography, and ethnography, "The Lost Art of Finding Our Way" puts us in the shoes, ships, and sleds of early navigators for whom paying close attention to the environment around them was, quite literally, a matter of life and death.Haunted by the fate of two young kayakers lost in a fogbank off Nantucket, Huth shows us how to navigate using natural phenomena the way the Vikings used the sunstone to detect polarization of sunlight, and Arab traders learned to sail into the wind, and Pacific Islanders used underwater lightning and read waves to guide their explorations. Huth reminds us that we are all navigators capable of learning techniques ranging from the simplest to the most sophisticated skills of direction-finding. Even today, careful observation of the sun and moon, tides and ocean currents, weather and atmospheric effects can be all we need to find our way.Lavishly illustrated with nearly 200 specially prepared drawings, Huth s compelling account of the cultures of navigation will engross readers in a narrative that is part scientific treatise, part personal travelogue, and part vivid re-creation of navigational history. Seeing through the eyes of past voyagers, we bring our own world into sharper view."

    During the year as they cross-country ski, hike, bicycle, canoe, and backpack into Yellowstone's grandeur, Rick digs into important controversies: the outrage over the proposed removal of grizzlies from the endangered species list; the dispute over hunting park wolves along Yellowstone's border; the debate about whether wolves help or harm the ecosystem and the economy; the fight to stop the slaughter of park bison; the overuse of the park; and their community's battle to prevent gold mining on the park's border. Rick ends the year with a stronger love for Yellowstone's grandeur, a deeper knowledge of the controversies threatening the park, and a desire to inspire readers to protect our nation's first national park.

    Helens in southwestern Washington State. Still, no one was prepared when a cataclysmic eruption blew the top off of the mountain, laying waste to hundreds of square miles of land and killing fifty-seven people. Steve Olson interweaves vivid personal stories with the history, science, and economic forces that influenced the fates and futures of those around the volcano. Eruption delivers a spellbinding narrative of an event that changed the course of volcanic science, and an epic tale of our fraught relationship with the natural world.

    Coated in red dust, the terrain is bewilderingly empty. And yet multiple spacecraft are circling Mars, sweeping over Terra Sabaea, Syrtis Major, the dunes of Elysium, and Mare Sirenum—on the brink, perhaps, of a staggering find, one that would inspire humankind as much as any discovery in the history of modern science.In this beautifully observed, deeply personal book, Georgetown scientist Sarah Stewart Johnson tells the story of how she and other researchers have scoured Mars for signs of life, transforming the planet from a distant point of light into a world of its own.Johnson’s fascination with Mars began as a child in Kentucky, turning over rocks with her father and looking at planets in the night sky. She now conducts fieldwork in some of Earth’s most hostile environments, such as the Dry Valleys of Antarctica and the salt flats of Western Australia, developing methods for detecting life on other worlds. Here, with poetic precision, she interlaces her own personal journey—as a female scientist and a mother—with tales of other seekers, from Percival Lowell, who was convinced that a utopian society existed on Mars, to Audouin Dollfus, who tried to carry out astronomical observations from a stratospheric balloon. In the process, she shows how the story of Mars is also a story about Earth: This other world has been our mirror, our foil, a telltale reflection of our own anxieties and yearnings.Empathetic and evocative, The Sirens of Mars offers an unlikely natural history of a place where no human has ever set foot, while providing a vivid portrait of our quest to defy our isolation in the cosmos.

    Gabrielle Walker, author, consultant to New Scientist and regular broadcaster with the BBC has written a book unlike any that has ever been written about the continent. Antarctica weaves all the significant threads into an intricate tapestry, made up of science, natural history, poetry, epic history, what it feels like to be there and why it draws so many different kinds of people back there again and again. It is only when all the parts come together that the underlying truths of the continent emerge. Antarctica is the most alien place on Earth, the only part of our planet where humans could never survive unaided. It is truly like walking on another planet. And yet, in its silence, its agelessness and its mysteries lie the secrets of our past, and of our future.

    Charles Darwin played a crucial part in turning heredity into a scientific question, and yet he failed spectacularly to answer it. The birth of genetics in the early 1900s seemed to do precisely that. Gradually, people translated their old notions about heredity into a language of genes. As the technology for studying genes became cheaper, millions of people ordered genetic tests to link themselves to missing parents, to distant ancestors, to ethnic identities. . . .But, Zimmer writes, "Each of us carries an amalgam of fragments of DNA, stitched together from some of our many ancestors. Each piece has its own ancestry, traveling a different path back through human history. A particular fragment may sometimes be cause for worry, but most of our DNA influences who we are--our appearance, our height, our penchants--in inconceivably subtle ways." Heredity isn't just about genes that pass from parent to child. Heredity continues within our own bodies, as a single cell gives rise to trillions of cells that make up our bodies. We say we inherit genes from our ancestors--using a word that once referred to kingdoms and estates--but we inherit other things that matter as much or more to our lives, from microbes to technologies we use to make life more comfortable. We need a new definition of what heredity is and, through Carl Zimmer's lucid exposition and storytelling, this resounding tour de force delivers it. Weaving historical and current scientific research, his own experience with his two daughters, and the kind of original reporting expected of one of the world's best science journalists, Zimmer ultimately unpacks urgent bioethical quandaries arising from new biomedical technologies, but also long-standing presumptions about who we really are and what we can pass on to future generations.

    Spending nearly half the year in a 7' x 7' tower, 10,000 feet above sea level in remote New Mexico, his tasks were simple: keep watch over one of the most fire-prone forests in the country and sound the alarm at the first sign of smoke.Fire Season is Connors's remarkable reflection on work, our place in the wild, and the charms of solitude. The landscape over which he keeps watch is rugged and roadless — it was the first region in the world to be officially placed off limits to industrial machines — and it typically gets hit by lightning more than 30,000 times per year. Connors recounts his days and nights in this forbidding land, untethered from the comforts of modern life: the eerie pleasure of being alone in his glass-walled perch with only his dog Alice for company; occasional visits from smokejumpers and long-distance hikers; the strange dance of communion and wariness with bears, elk, and other wild creatures; trips to visit the hidden graves of buffalo soldiers slain during the Apache wars of the nineteenth century; and always the majesty and might of lightning storms and untamed fire.Written with narrative verve and startling beauty, and filled with reflections on his literary forebears who also served as lookouts — among them Edward Abbey, Jack Kerouac, Norman Maclean, and Gary Snyder — Fire Season is a book to stand the test of time.

    From her small-town home in Ontario, it seemed as if Marco Polo, Magellan and their like had long ago mapped the whole earth. So she vowed to become a scientist and go to Mars. To pass the time before she could launch into outer space, Kate set off by bicycle down a short section of the fabled Silk Road with her childhood friend Mel Yule, then settled down to study at Oxford and MIT. Eventually the truth dawned on her: an explorer, in any day and age, is by definition the kind of person who refuses to live between the lines. And Harris had soared most fully out of bounds right here on Earth, travelling a bygone trading route on her bicycle. So she quit the laboratory and hit the Silk Road again with Mel, this time determined to bike it from the beginning to end. Like Rebecca Solnit and Pico Iyer before her, Kate Harris offers a travel narrative at once exuberant and meditative, wry and rapturous. Weaving adventure and deep reflection with the history of science and exploration, Lands of Lost Borders explores the nature of limits and the wildness of a world that, like the self and like the stars, can never be fully mapped.

    She eats road kill, wrestles alligators, rides horses bareback, and lives in a ramshackle cabin that she built herself in an island wilderness. She’s had three husbands and many lovers, one of whom she shot and killed in self-defense. A combination of Henry David Thoreau and Jane Goodall, Carol is a self-taught scientist who has become a tireless defender of sea turtles on Cumberland Island, a national park off the coast of Georgia.Cumberland is the country's largest and most biologically diverse barrier island—over forty square miles of pristine wilderness celebrated for its windswept dunes and feral horses. Steel magnate Thomas Carnegie owned much of Cumberland, and his widow Lucy made it a Gilded Age playground. But in recent years, Carnegie heirs and the National Park Service have clashed with Carol over the island’s future. What happens when a dirt-poor naturalist with only a high-school diploma tries to stop one of the wealthiest families in America? Untamed is the story of an American original standing her ground and fighting for what she believes in, no matter the cost.

    Mapped by John Smith in 1608, settled during the American Revolution, the tiny sliver of mud is home to 470 hardy people who live an isolated and challenging existence, with one foot in the 21st century and another in times long passed. They are separated from their countrymen by the nation’s largest estuary, and a twelve-mile boat trip across often tempestuous water—the same water that for generations has made Tangier’s fleet of small fishing boats a chief source for the rightly prized Chesapeake Bay blue crab, and has lent the island its claim to fame as the softshell crab capital of the world.Yet for all of its long history, and despite its tenacity, Tangier is disappearing. The very water that has long sustained it is erasing the island day by day, wave by wave. It has lost two-thirds of its land since 1850, and still its shoreline retreats by fifteen feet a year—meaning this storied place will likely succumb first among U.S. towns to the effects of climate change. Experts reckon that, barring heroic intervention by the federal government, islanders could be forced to abandon their home within twenty-five years. Meanwhile, the graves of their forebears are being sprung open by encroaching tides, and the conservative and deeply religious Tangiermen ponder the end times.Chesapeake Requiem is an intimate look at the island’s past, present and tenuous future, by an acclaimed journalist who spent much of the past two years living among Tangier’s people, crabbing and oystering with its watermen, and observing its long traditions and odd ways. What emerges is the poignant tale of a world that has, quite nearly, gone by—and a leading-edge report on the coming fate of countless coastal communities.