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.

    But we long to know more: how did these animals actually behave? We are fascinated by the daily lives of our fellow creatures--how they reproduce and raise their young, how they hunt their prey or elude their predators, and more. What would it be like to see prehistoric animals as they lived and breathed?From dinosaurs fighting to their deaths to elephant-sized burrowing ground sloths, this book takes readers on a global journey deep into the earth's past. Locked in Time showcases fifty of the most astonishing fossils ever found, brought together in five fascinating chapters that offer an unprecedented glimpse at the real-life behaviors of prehistoric animals. Dean R. Lomax examines the extraordinary direct evidence of fossils captured in the midst of everyday action, such as dinosaurs sitting on their eggs like birds, Jurassic flies preserved while mating, a T. rex infected by parasites. Each fossil, he reveals, tells a unique story about prehistoric life. Many recall behaviors typical of animals familiar to us today, evoking the chain of evolution that links all living things to their distant ancestors. Locked in Time allows us to see that fossils are not just inanimate objects: they can record the life stories of creatures as fully alive as any today. Striking and scientifically rigorous illustrations by renowned paleoartist Bob Nicholls bring these breathtaking moments to life.

    November 2015 is the 100th anniversary of Einstein’s discovery of the General Theory of Relativity.Levenson, head of MIT’s Science Writing Program, tells the captivating, unusual, and nearly-forgotten backstory behind Einstein’s invention of the Theory of Relativity, which completely changed the course of science forever. For over 50 years before Einstein developed his theory, the world’s top astronomers spent countless hours and energy searching for a planet, which came to be named Vulcan, that had to exist, it was thought, given Isaac Newton’s theories of gravity. Indeed, in the two centuries since Newton’s death, his theory had essentially become accepted as fact. It took Einstein’s genius to realize the mystery of the missing planet wasn’t a problem of measurements or math but of Newton’s theory of gravity itself. Einstein’s Theory of Relativity proved that Vulcan did not and could not exist, and that the decades-long search for it had merely been a quirk of operating under the wrong set of assumptions about the universe. Thomas Levenson tells this unique story, one of the strangest episodes in the history of science, with elegant simplicity, fast-paced drama, and lively characters sure to capture the attention of a wide group of readers.

    A story of defiance and determination by a controversial scientist, this is Lee Berger's own take on finding Homo naledi, an all-new species on the human family tree and one of the greatest discoveries of the 21st century.In 2013, Berger, a National Geographic Explorer-in-Residence, caught wind of a cache of bones in a hard-to-reach underground cave in South Africa. He put out a call around the world for petite collaborators--men and women small and adventurous enough to be able to squeeze through 8-inch tunnels to reach a sunless cave 40 feet underground. With this team of "underground astronauts," Berger made the discovery of a lifetime: hundreds of prehistoric bones, including entire skeletons of at least 15 individuals, all perhaps two million years old. Their features combined those of known prehominids like Lucy, the famous Australopithecus, with those more human than anything ever before seen in prehistoric remains. Berger's team had discovered an all new species, and they called it Homo naledi.The cave quickly proved to be the richest primitive hominid site ever discovered, full of implications that shake the very foundation of how we define what makes us human. Did this species come before, during, or after the emergence of Homo sapiens on our evolutionary tree? How did the cave come to contain nothing but the remains of these individuals? Did they bury their dead? If so, they must have had a level of self-knowledge, including an awareness of death. And yet those are the very characteristics used to define what makes us human. Did an equally advanced species inhabit Earth with us, or before us? Berger does not hesitate to address all these questions.Berger is a charming and controversial figure, and some colleagues question his interpretation of this and other finds. But in these pages, this charismatic and visionary paleontologist counters their arguments and tells his personal story: a rich and readable narrative about science, exploration, and what it means to be human.

    Scientists around the world are currently monitoring the sixth extinction, predicted to be the most devastating extinction event since the asteroid impact that wiped out the dinosaurs. This time around, the cataclysm is us. In prose that is at once frank, entertaining, and deeply informed, The New Yorker writer Elizabeth Kolbert tells us why and how human beings have altered life on the planet in a way no species has before. Interweaving research in half a dozen disciplines, descriptions of the fascinating species that have already been lost, and the history of extinction as a concept, Kolbert provides a moving and comprehensive account of the disappearances occurring before our very eyes. She shows that the sixth extinction is likely to be mankind's most lasting legacy, compelling us to rethink the fundamental question of what it means to be human.

    If the world lost the sub-species, it would be the largest land mammal since the woolly mammoth to go extinct. In "The Last Rhinos," Anthony recounts his attempts to save these animals.The demand for rhino horns in the Far East has turned poaching into a dangerous black market that threatens the lives of not just these rare beasts, but also the rangers who protect them.The northern white rhino's last refuge was in an area controlled by the infamous Lord's Resistance Army, one of the most vicious rebel groups in the world. In the face of unmoving government bureaucracy, Anthony made a perilous journey deep into the jungle to try to find and convince them to help save the rhino.

    One of the most important achievements of the past millennium, it did for biology what Galileo did for astronomy: made it into a single science rather than a collection of unrelated facts. Important though Origin remains, its examples and intricate Victorian prose are now a century and a half old. They are ripe for renewal and reaffirmation. Writing as "Darwin's ghost," eminent geneticist Steve Jones updates this seminal work—and restates evolution's case for the 21st century.Jones is a writer of engaging wit and dazzling erudition and has been called "the British Carl Sagan." Using modern examples—the AIDS virus, the puzzles of sexual selection, the physiology and psychology of pets, and the unparalleled genetic success of our own species—he shows the power and immediacy of Darwin's great argument and makes us appreciate how it makes life make sense. Eye-opening and entertaining, filled with astonishing facts, amusing anecdotes, and the very latest research, Darwin's Ghost is contemporary science writing at its very best.

    He skillfully portrays the daily lives of herdsmen and hunter-gatherers; the drama of the predator kills; the hundreds of exotic animals; the breathtaking landscapes; and the area's turbulent natural, political, and social histories.

    The story starts in earnest 3.8 billion years ago, with the earliest-known form of life on Earth, a bacteria that still exists today, and journeys through action-packed millennia, charting the appearance of new life forms as well as devastating extinction events. Of course, the ever-popular and endlessly intriguing dinosaurs feature large, but Prehistoric Life gives you the whole picture, and the plants, invertebrates, amphibians, birds, reptiles, and mammals that are the ancestors of today's species also populate its pages, making this book unprecedented in its coverage of prehistory. Specially commissioned artworks use cutting-edge technology to render species in breathtakingly realistic fashion, with astonishing images of prehistoric remains, such as skeletons and fossils, to complete the story. To put all the evidence in context, the concept of geological time is explored, as is the classification of species and how the evidence for their evolution is preserved and can be deciphered.New technologies have brought new life to inanimate fossils. CT scanning, for example, unlocks a 3D image of a plant or animal from a piece of rock, which can then be viewed from all angles revealing never-before-seen details. From this researchers can fill in missing pieces and even simulate how an animal might have moved. Panels explore these and numerous other scientific techniques for recovering, dating, and reconstructing, as well as profiling individuals, key excavations and discoveries, and some of the unique anatomical features that nature has developed over the course of time.The last section of the book looks at the development of humans and the eventual rise to dominance of Homo sapiens, exploring not only their changing anatomy as revealed by the fossils but also the evidence for culture and society as evidenced by extraordinary cave paintings and intricately worked tools.In combination, the stunning visuals, captivating, authoritative text, and comprehensive approach make Prehistoric Life a fascinating and revealing encyclopedia that will appeal to the whole family.TABLE OF CONTENTS1. LIVING PLANET (38 pp)Foundations of a living planet. The Earth's structure. Plate tectonics, formation of oceans and continents.Changing climate. factors that contribute to climate change, how those can be seen in the geological record, and how that has affected life on Earth.Reconstructing the past. Using the present to understand the past (rocks and the rock cycle, layers of rock and dating)Fossils. Types of fossils, how they form, reconstructing the past from them (digging up, analysis), reconstructing past environments, dating using fossils.Geological timescale. Explanation of geological time.Life on Earth. What is life? Natural selection, DNA, molecular clocks, mass extinctions.Timeline of Evolution. Broad-scale look at major evolutionary markers through time.Classification. How we classify living organisms. The kingdoms of life.2. ON EARTH (398 PP) This chapter will be organized so that pages can be removed to leave a section of 360pp.his consists of a catalog divided into geological periods. Each period introduction covers the conditions on Earth at the time (geology and climate) and includes a chart showing the evolution of the main forms of life. The subsequent catalog entries are organized into groups: Microscopic life; Plants and Fungi; Invertebrates; and Vertebrates, with each having an introduction detailing the main evolutionary developments within the group.Archean 3.8-2.5 billion years ago (4pp)Period introduction. (1p)Archean life intro - (1p) the rise of life. Biology of cells; prokaryotes, cyanobacteria, stromatolites.Catalog of species.Proterozoic 2.5 billion-543 mya (6pp)Period introduction. (2pp)Microscopic life intro. (1p)Catalog of species. (1p)Invertebrates intro. (1p)Catalog of species. (1p)Cambrian 543-490 mya (20pp)Period introduction (4pp)Microscopic life intro. (1p)Catalog of species. (3pp)Invertebrates intro. (2pp)Catalog of species. (8pp)Vertebrates intro. (1p)Catalog of species. (1p)Ordovician 490-443 mya (14pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species.(1p)Invertebrates intro. (1p)Catalog of species. (3pp)Vertebrates intro. (1p)Catalog of species. (1p)Silurian 443-417 mya (20pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species. (1p)Invertebrates intro. (1p)Catalog of species. (7pp)Vertebrates intro. (1p)Catalog of species. (3p)Devonian 417-354 mya (34pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species. (7pp)Invertebrates intro. (1p)Catalog of species. (7pp)Vertebrates intro. (2p)Catalog of species. (10pp)Carboniferous 354-290 mya (38pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (2pp)Catalog of species. (8pp)Invertebrates intro. (1p)Catalog of species. (9pp)Vertebrates intro. (2pp)Catalog of species. (10pp)Permian 290-248 mya (26pp)Period introduction. (Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species. (3pp)Invertebrates intro. (1p)Catalog of species. (7pp)Vertebrates intro. (1p)Catalog of species. (7pp)Triassic 248-206 mya (30pp)Period introduction. (Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species. (5pp)Invertebrates intro. (1p)Catalog of species. (3pp)Vertebrates intro. (1pp)Catalog of species. (13pp)Jurassic 206-144 mya (56pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species. (5pp)Invertebrates intro. (1p)Catalog of species. (9pp)Vertebrates intro. (2pp)Catalog of species. (24pp)Cretaceous 144-65 mya (54pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (2pp)Catalog of species. (10pp)Invertebrates intro. (1p)Catalog of species. (9pp)Vertebrates intro. (2pp)Catalog of species. (24pp)Paleogene 65-23.8 mya (34pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species. (6pp)Invertebrates intro. (1p)Catalog of species. (6pp)Vertebrates intro. (2pp)Catalog of species. (12pp)Neogene 23.8-1.8 mya (32pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species. (6pp)Invertebrates intro. (1p)Catalog of species. (7pp)Vertebrates intro. (1p)Catalog of species. (10pp)Quaternary 1.8 mya-Present (26pp)Period introduction. (4pp)Microscopic life intro. (1p)Catalog of species. (1p)Plants and fungi intro. (1p)Catalog of species. (Invertebrates intro. (1p)Catalog of species. (5pp)Vertebrates intro. (1p)Catalog of species. (8pp)3. THE RISE OF HUMANS (44PP)Timeline of human evolution.Coverage of: Sahelanthropus tchadensis, Orrorin tugenesis, Ardipithecus kadabba, Ardipithecus ramidus, Australopithecus anamensis, Australopithecus afarensis, Kenyanthropus platyops, Australopithecus africanus, Australopithecus aethiopicus, Australopithecus garhi, Homo habilis, Homo rudolfensis, Paranthropus boisei, Homo ergaster, Paranthropus robustus, Homo erectus, Homo heidelbergensis, Homo neanderthalensis, Homo sapiens.Themes of anatomy, DNA, global expansion, tool use, diet, communication, ecology, society, and culture run through the section.Glossary/Index/Acknowledgements

    Buried there lie answers about the origins of humankind. After a century of investigation, scientists have transformed our understanding about the beginnings of human life. But vital clues still remain hidden. In Born in Africa, Martin Meredith follows the trail of discoveries about human origins made by scientists over the last hundred years, recounting their intense rivalry, personal feuds, and fierce controversies as well as their feats of skill and endurance.The results have been momentous. Scientists have identified more than twenty species of extinct humans. They have firmly established Africa as the birthplace not only of humankind but also of modern humans. They have revealed how early technology, language ability, and artistic endeavour all originated in Africa; and they have shown how small groups of Africans spread out from Africa in an exodus sixty thousand years ago to populate the rest of the world. We have all inherited an African past.

    Alexander von Humboldt (1769 – 1859) was an intrepid explorer and the most famous scientist of his age. In North America, his name still graces four counties, thirteen towns, a river, parks, bays, lakes, and mountains. His restless life was packed with adventure and discovery, whether he was climbing the highest volcanoes in the world or racing through anthrax-infected Siberia or translating his research into bestselling publications that changed science and thinking. Among Humboldt's most revolutionary ideas was a radical vision of nature, that it is a complex and interconnected global force that does not exist for the use of humankind alone. Now Andrea Wulf brings the man and his achievements back into focus: his daring expeditions and investigation of wild environments around the world and his discoveries of similarities between climate and vegetation zones on different continents. She also discusses his prediction of human-induced climate change, his remarkable ability to fashion poetic narrative out of scientific observation, and his relationships with iconic figures such as Simón Bolívar and Thomas Jefferson. Wulf examines how Humboldt's writings inspired other naturalists and poets such as Darwin, Wordsworth, and Goethe, and she makes the compelling case that it was Humboldt's influence that led John Muir to his ideas of natural preservation and that shaped Thoreau's Walden.With this brilliantly researched and compellingly written book, Andrea Wulf shows the myriad fundamental ways in which Humboldt created our understanding of the natural world, and she champions a renewed interest in this vital and lost player in environmental history and science.

    But in recent decades, these claims have eroded, or even been disproven outright, by a revolution in the study of animal cognition. Take the way octopuses use coconut shells as tools; elephants that classify humans by age, gender, and language; or Ayumu, the young male chimpanzee at Kyoto University whose flash memory puts that of humans to shame. Based on research involving crows, dolphins, parrots, sheep, wasps, bats, whales, and of course chimpanzees and bonobos, Frans de Waal explores both the scope and the depth of animal intelligence. He offers a firsthand account of how science has stood traditional behaviorism on its head by revealing how smart animals really are, and how we’ve underestimated their abilities for too long.People often assume a cognitive ladder, from lower to higher forms, with our own intelligence at the top. But what if it is more like a bush, with cognition taking different forms that are often incomparable to ours? Would you presume yourself dumber than a squirrel because you’re less adept at recalling the locations of hundreds of buried acorns? Or would you judge your perception of your surroundings as more sophisticated than that of a echolocating bat? De Waal reviews the rise and fall of the mechanistic view of animals and opens our minds to the idea that animal minds are far more intricate and complex than we have assumed. De Waal’s landmark work will convince you to rethink everything you thought you knew about animal—and human—intelligence.

    Will temperatures rise by 2�C or 8�C over the next hundred years? Will sea levels rise by 2 or 30 feet? The only way that we can accurately answer questions like these is by looking into the distant past, for a comparison with the world long before the rise of mankind.We may currently believe that atmospheric shifts, like global warming, result from our impact on the planet, but the earth's atmosphere has been dramatically shifting since its creation. This book reveals the crucial role that plants have played in determining atmospheric change - and hence the conditions on the planet we know today. Along the way a number of fascinating puzzles arise: Why did plants evolve leaves? When and how did forests once grow on Antarctica? How did prehistoric insects manage to grow so large? The answers show the extraordinary amount plants can tell us about the history of the planet -- something that has often been overlooked amongst the preoccuputations with dinosaur bones and animal fossils.David Beerling's surprising conclusions are teased out from various lines of scientific enquiry, with evidence being brought to bear from fossil plants and animals, computer models of the atmosphere, and experimental studies. Intimately bound up with the narrative describing the dynamic evolution of climate and life through Earth's history, we find Victorian fossil hunters, intrepid polar explorers and pioneering chemists, alongside wallowing hippos, belching volcanoes, and restless landmasses.

    From the #1 bestselling author of The Hot Zone comes an amazing account of scientific and spiritual passion for the tallest trees in the world, the startling biosystem of Rthe canopy, S and those who are committed to the preservation of this astonishing and largely unknown world.

    While focusing on dinosaurs it also uses them to convey other aspects of the natural sciences, including fundamental concepts in evolutionary biology, physiology, life history, and systematics. Considerable attention is devoted the nature of science itself: what it is, what it is not, and how science can be used to investigate particular kinds of questions. Dinosaurs is unique because it fills a gap between the glossy, fact-driven dinosaur books and the higher-level academic books, addressing the paleontology of dinosaurs exactly as professionals in the field do.