Each year they are seen by millions of visitors, and they have become as integral a part of the Tower as its ancient stones. But their role is even more important than that—legend has it that if the ravens should ever leave, the Tower will crumble into dust and great harm will befall the kingdom.The responsibility for ensuring that such a disaster never comes to pass falls to one man: the Ravenmaster. The current holder of the position is Yeoman Warder Christopher Skaife, and in this fascinating, entertaining and touching book he memorably describes the ravens’ formidable intelligence, their idiosyncrasies and their occasionally wicked sense of humour. The Ravenmaster is a compelling, inspiring and irreverent story that will delight and surprise anyone with an interest in British history or animal behaviour.

    He decried the internment of Japanese-Americans in World War Two, agitated against nuclear weapons, promoted vitamin C as a cure for the common cold and researched the idea of DNA.

    Yet, as the 1700s began, the mysteries of the universe were pondered by "natural philosophers"—the term "scientist" didn't even exist until the mid 19th century—whose explanations couldn't help but be influenced by the religious thought and political and social contexts that shaped their world.The radical ideas of the Enlightenment were especially important and influential. In this course you see how the work of these natural philosophers prepared the way for the more familiar world of science we recognize today.

    The Lockheed L-188A Electra, on the way from Lima to Pucallpa, flew directly into a thunderstorm. A strike of lightning left the plane incinerated, and Juliane Diller (Koepcke), still strapped to her plane seat, fell through the night air two miles above the Earth. Her survival is unexplainable and considered a modern day miracle. Her mother was among the 91 dead and Juliane the sole survivor. For 11 days she crawled and walked alone through the jungle, fighting for her survival again with hunger and despair her only companions as maggots ate their way into her wounds.Juliane ultimately survived and went on to live an inspiring life as a scientist continually drawn back to the terrain that threatened to take her. On the 40th anniversary, she shares not only the private moments of her survival and rescue but her life in the wake of the dramatic true story.

    For centuries, it allowed Colombians to settle their mountainous, geographically unique region--one of the most challenging on the planet. Colombia's complicated history reflects the beautiful, wild and impossible geography of its largest river: in places, it is placid and calm; in other moments, tortured and unpredictable. A cultural wellspring of music, poetry and literature, in dark times the Magdalena also served as the nation's graveyard. As the country enters a momentous period of revitalization, Wade Davis explores the three major sections of the river, alto, medio, and bajo, evoking each singular landscape and the people he meets there in poetic, nuanced writing, accompanied by his own striking photography.At once an absorbing adventure and an inspiring story of hope and redemption, Magdalena gives us a rare, kaleidoscopic picture of the past and present of a nation often reduced to unfair clichés of drug cartels and violence. Through many years of uncertainty, however, the Magdalena never abandoned its people, always returning as a life-giving force, the source of much of Colombia's wealth--and its dreams.Seamlessly weaving together memoir, history, and a remarkable tale of a nation rising to bring about transformational change, Wade Davis tells the story of this magnificent river with passion and love, and in doing so, tells the epic story of Colombia.

    In Rising, Elizabeth Rush guides readers through some of the places where this change has been most dramatic, from the Gulf Coast to Miami, and from New York City to the Bay Area. For many of the plants, animals, and humans in these places, the options are stark: retreat or perish in place.Weaving firsthand testimonials from those facing this choice--a Staten Islander who lost her father during Sandy, the remaining holdouts of a Native American community on a drowning Isle de Jean Charles, a neighborhood in Pensacola settled by escaped slaves hundreds of years ago--with profiles of wildlife biologists, activists, and other members of these vulnerable communities, Rising privileges the voices of those too often kept at the margins.

    In 1992, in a remote mountain range, a team of scientists discovered the remains of an unusual animal with exquisite long horns. It turned out to be a living species new to Western science -- a saola, the first large land mammal discovered in fifty years. Rare then and rarer now, a live saola had never been glimpsed by a Westerner in the wild when Pulitzer Prize finalist and nature writer William deBuys and conservation biologist William Robichaud set off to search for it in central Laos. Their team endured a punishing trek up and down white-water rivers and through mountainous terrain ribboned with the snare lines of armed poachers who roamed the forest, stripping it of wildlife. In the tradition of Bruce Chatwin, Colin Thubron, and Peter Matthiessen, The Last Unicorn chronicles deBuys's journey deep into one of the world's most remote places. It's a story rich with the joys and sorrows of an expedition into undiscovered country, pursuing a species as rare and elusive as the fabled unicorn. As is true with the quest for the unicorn, in the end the expedition becomes a search for something more: the essence of wildness in nature, evidence that the soul of a place can endure, and the transformative power of natural beauty.

    In this engrossing narrative of the Far North, enriched by her own adventurous sojourns in the Arctic, Andrea Pitzer brings Barents' three harrowing expeditions to vivid life--while giving us fascinating insights into one of history's most intrepid navigators.

    Now the greatest event of the twentieth century

    My Family and Other Animals was intended to embrace the natural history of the island but ended up as a delightful account of Durrell’s family’s experiences, from the many eccentric hangers-on to the ceaseless procession of puppies, toads, scorpions, geckoes, ladybugs, glowworms, octopuses, bats, and butterflies into their home.

    The ice sheet that covers it is 700 miles wide and 1,500 miles long, and is composed of nearly three quadrillion tons of ice. For the last 150 years, explorers and scientists have sought to understand Greenland--at first hoping that it would serve as a gateway to the North Pole, and later coming to realize that it contained essential information about our climate. Locked within this vast and frozen white desert are some of the most profound secrets about our planet and its future. Greenland's ice doesn't just tell us where we've been. More urgently, it tells us where we're headed.In The Ice at the End of the World, Jon Gertner explains how Greenland has evolved from one of earth's last frontiers to its largest scientific laboratory. The history of Greenland's ice begins with the explorers who arrived here at the turn of the twentieth century--first on foot, then on skis, then on crude, motorized sleds--and embarked on grueling expeditions that took as long as a year and often ended in frostbitten tragedy. Their original goal was simple: to conquer Greenland's seemingly infinite interior. Yet their efforts eventually gave way to scientists who built lonely encampments out on the ice and began drilling--one mile, two miles down. Their aim was to pull up ice cores that could reveal the deepest mysteries of earth's past, going back hundreds of thousands of years.Today, scientists from all over the world are deploying every technological tool available to uncover the secrets of this frozen island before it's too late. As Greenland's ice melts and runs off into the sea, it not only threatens to affect hundreds of millions of people who live in coastal areas. It will also have drastic effects on ocean currents, weather systems, economies, and migration patterns.Gertner chronicles the unfathomable hardships, amazing discoveries, and scientific achievements of the Arctic's explorers and researchers with a transporting, deeply intelligent style--and a keen sense of what this work means for the rest of us. The melting ice sheet in Greenland is, in a way, an analog for time. It contains the past. It reflects the present. It can also tell us how much time we might have left.

    xn + yn = zn, where n represents 3, 4, 5, ...no solution"I have discovered a truly marvelous demonstration of this proposition which this margin is too narrow to contain."With these words, the seventeenth-century French mathematician Pierre de Fermat threw down the gauntlet to future generations.  What came to be known as Fermat's Last Theorem looked simple; proving it, however, became the Holy Grail of mathematics, baffling its finest minds for more than 350 years.  In Fermat's Enigma--based on the author's award-winning documentary film, which aired on PBS's "Nova"--Simon Singh tells the astonishingly entertaining story of the pursuit of that grail, and the lives that were devoted to, sacrificed for, and saved by it.  Here is a mesmerizing tale of heartbreak and mastery that will forever change your feelings about mathematics.

    

    This chance encounter in the basement of the Natural History Museum of Los Angeles County sparked Troll’s obsession with Helicoprion, a mysterious monster from deep time.In 2010, tattooed undergraduate student and returning Iraq War veteran Jesse Pruitt became seriously smitten with a Helicoprion fossil in a museum basement in Idaho. These two bizarre-shark disciples found each other, and an unconventional band of collaborators grew serendipitously around them, determined to solve the puzzle of the mysterious tooth whorl once and for all.Helicoprion was a Paleozoic chondrichthyan about the size of a modern great white shark, with a circular saw of teeth centered in its lower jaw—a feature unseen in the shark world before or since. For some ten million years, long before the Age of Dinosaurs, Helicoprion patrolled the shallow seas around the supercontinent Pangaea as the apex predator of its time.Just a few tumultuous years after Pruitt and Troll met, imagination, passion, scientific process, and state-of-the-art technology merged into an unstoppable force that reanimated the remarkable creature—and made important new discoveries.In this groundbreaking book, Susan Ewing reveals these revolutionary insights into what Helicoprion looked like and how the tooth whorl functioned—pushing this dazzling and awe-inspiring beast into the spotlight of modern science.

    Now in Over the Edge of the World, biographer and journalist Laurence Bergreen entwines a variety of candid, firsthand accounts, bringing to life this groundbreaking and majestic tale of discovery that changed both the way explorers would henceforth navigate the oceans and history itself.