Trade Paperback

    Featuring more than 500 full-color illustrations and photographs, along with detailed annotations, Smithsonian Handbooks make identification easy and accurate.

    They took three billion man-hours to build. And even though most are crumbling today, they contain a magnificent scientific and cultural story—about the geothermal forces that formed their stones, the tectonic movements that brought them to the surface, the glacial tide that broke them apart, the earth that held them for so long, and about the humans who built them.Stone walls tell nothing less than the story of how New England was formed, and in Robert Thorson's hands they live and breathe. "The stone wall is the key that links the natural history and human history of New England," Thorson writes. Millions of years ago, New England's stones belonged to ancient mountains thrust up by prehistoric collisions between continents. During the Ice Age, pieces were cleaved off by glaciers and deposited—often hundreds of miles away—when the glaciers melted. Buried again over centuries by forest and soil buildup, the stones gradually worked their way back to the surface, only to become impediments to the farmers cultivating the land in the eighteenth century, who piled them into "linear landfills," a place to hold the stones. Usually the biggest investment on a farm, often exceeding that of the land and buildings combined, stone walls became a defining element of the Northeast's landscape, and a symbol of the shift to an agricultural economy.Stone walls layer time like Russian dolls, their smallest elements reflecting the longest spans, and Thorson urges us to study them, for each stone has its own story. Linking geological history to the early American experience, Stone by Stone presents a fascinating picture of the land the Pilgrims settled, allowing us to see and understand it with new eyes.

    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.

    In The Outer Beach, beloved nature writer Robert Finch weaves together his collected writings from more than fifty years and more than a thousand miles of walking along Cape Cod’s Atlantic coast to create a poignant, candid chronicle of an iconic American landscape.Finch considers evidence of nature’s fury: shipwrecks, beached whales, towering natural edifices, ferocious seaside blizzards. And he ponders everyday human interactions conducted in its environment with equal curiosity, wit, and insight: taking a weeks-old puppy for his first beach walk; engaging in a nocturnal dance with one of the Cape’s fabled lighthouses; stumbling, unexpectedly, upon nude sunbathers; or even encountering out-of-towners hoping an Uber will fetch them from the other side of a remote dune field.Throughout these essays, Finch pays tribute to the Outer Beach’s impressive literary legacy, meditates on its often-tragic history, and explores the strange, mutable nature of time near the ocean. But lurking behind every experience and observation—both pivotal and quotidian—is the essential question that the beach beckons every one of its pilgrims to confront: How do we accept our brief existence here, caught between overwhelming beauty and merciless indifference?Finch’s affable voice, attentive eye, and stirring prose will be cherished by the Cape’s staunch lifers and erstwhile visitors alike, and strike a resounding chord with anyone who has been left breathless by the majestic, unrelenting beauty of the shore.

    Blue Planet II, which accompanies an epic 7-part series on BBC1, is a ground-breaking new look at the richness and variety of underwater life across our planet.From ambush hunters such as the carnivorous bobbit worm to cuttlefish mesmerising their prey with a pulsating light display, Blue Planet II reveals the never-before-seen secrets of the ocean. With over 200 breath-taking photographs and stills from the BBC Natural History Unit's spectacular footage, each chapter of Blue Planet II brings to life a different habitat of the oceanic world. Voyages of migration show how each of the oceans on our planet are connected; coral reefs and arctic ice communities are revealed as thriving underwater cities; while shorelines throw up continual challenges to those living there or passing through. A final chapter explores the science and technology of the Ocean enterprise – not only how they were able to capture these amazing stories on film, but what the future holds for marine life based on these discoveries.

    edition features an extra 16 pages of insights into the book, including author interviews, recommended reading, and more.

    The only question is when. In the meantime, we need to get much better at finding objects hurtling our way, and if they’re large enough to penetrate the atmosphere without burning up, figure out what to do about them. We owe many of science’s most important discoveries to the famed Meteor Crater, a mile-wide dimple on the Colorado Plateau created by an asteroid hit 50,000 years ago. In his masterfully researched Fire in the Sky, Dillow unpacks what the Crater has to tell us. Prior to the early 1900s, the world believed that all craters—on the Earth and Moon—were formed by volcanic activity. Not so. The revelation that Meteor Crater and others like it were formed by impacts with space objects has led to a now accepted theory about what killed off the dinosaurs, and it has opened up a new field of asteroid observation, which has recently brimmed with urgency. Dillow looks at great asteroid hits of the past and spends time with modern-day asteroid hunters and defense planning experts, including America’s first Planetary Defense Officer. Satellite sensors confirm that a Hiroshima-scale blast occurs in the atmosphere every year, and a smaller, one-kiloton blast every month. While Dillow makes clear that the objects above can be deadly, he consistently inspires awe with his descriptions of their size, makeup, and origins. At once a riveting work of popular science and a warning to not take for granted the space objects hurtling overhead, Fire in the Sky is, above all, a testament to our universe’s celestial wonders.

    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.

    

    Now palaeontologist Charles Pellegrino presents a wealth of new knowledge about the doomed towns – and brings to vivid life the people, their last moments, and the aftermath.The lessons learned from modern scrutiny of that ancient eruption produce disturbing echoes in the present. Dr Pellegrino, who worked at Ground Zero in the aftermath of the 9/11 attack, shares his unique knowledge of the strange physics of volcanic 'downblast' and 'collapse column', drawing a direct link from past to present, and providing readers with a poignant glimpse into the last moments of the 'American Vesuvius'.

    The descriptive text includes information on size, geological period, geographical distribution, and ecology of the animal or plant before it was fossilized. In addition, the book provides lists of Geological Survey offices and major fossil collections, a geological time chart, and a guide to collecting and preserving fossils.

    Written by a team of experts and featuring more than 320 illustrations, 418 photographs, and 123 maps, this new guide offers more authoritative, up-to-date, and accessible information than any book previously published on the subject.Organized by the four major groups of marine mammals—marine fissipeds, pinnipeds, cetaceans, and sirenians—the species descriptions include:Full-color paintings, some depicting males and females, juveniles, subspecies, or special features. Color photographs showing appearance in the wild and illustrating typical behaviors. Life history data, including length and weight at various life stages, and life span. Range and habitat text and a full-color range map based on the most current information. Facts about social organization, surface behaviors, swimming, and diving. Information on mating behavior, breeding, and the rearing of young. Details about food items and foraging techniques. Estimates of population in the wild, plus current and historic threats.A general introduction outlines the evolution and taxonomy of marine mammals, distribution, migration, watching guidelines, identification techniques, organizations and laws that protect marine mammals, and more.Introductions to groups include comparative size illustrations, discussion of behaviors particular to the group, and other unique features.A useful illustrated glossary of terms and an index of species names complete the guide.Exquisitely detailed illustrations, stunning photographs, and clearly written text combine to make this an indispensible reference source for marine mammal watchers and anyone interested in the natural world.

    And this updated edition contains a host of new findings on “Gemstones for Collectors,” additional gems in the “Table of Constants,” and the “double fraction” figures that experts have long wanted—a very special new feature.All the gemstones are treated in their many variations: more than 1,500 full-color photos showcase each precious and semiprecious stone in both its rough, natural, and its polished and cut renditions. Each entry offers complete information on the gemstone’s formation, structure, physical properties, and characteristics, along with the best methods of working, cutting, and polishing it. There are even full treatments of lesser-known gems, from andalusite to vesuvian, and a special section is devoted to rocks as precious stones, including alabaster, onyx, obsidian, and fossils. Organic gem materials are also covered, such as coral, ivory, amber, and pearl. Charts and tables help collectors identify unknown gemstones and check for genuineness.

    Map of a Nation tells the story of the creation of the Ordnance Survey map - the first complete, accurate, affordable map of the British Isles.