Thanks largely to YouTube clips posted by the sloth orphanage in Costa Rica, sloths have attracted a vast audience of admirers. Instead of seeing them as ridiculous anachronisms of which we know little, they have turned into creatures considered by many to be the most endearing on earth.Over much the same period, scientific investigations have also changed our view of sloths. No longer are they seen as total misfits in the modern world but, in the words of one specialist sloth investigator, they are 'masters of an alternative lifestyle'.In this wonderfully entertaining celebration of this most unique of creatures, William Hartston reveals the fascinating history of the sloth, from the prehistoric ground sloth to modern pygmy sloths in Panama, explores the current state of the science of sloths and reveals the truth behind sloth behaviour.

    He shows how oxygen underpins the origin of biological complexity, the birth of photosynthesis, the sudden evolution of animals, the need for two sexes, the accelerated aging of cloned animals like Dolly the sheep, and the surprisingly long lives of bats and birds. Drawing on this grand evolutionary canvas, Oxygen offers fresh perspectives on our own lives and deaths, explaining modern killer diseases, why we age, and what we can do about it. Advancing revelatory new ideas, following chains of evidence, the book ranges through many disciplines, from environmental sciences to molecular medicine. The result is a captivating vision of contemporary science and a humane synthesis of our place in nature. This remarkable book will redefine the way we think about the world.

    But as animals can only be spied on by getting quite close Heinrich adopts ravens, thereby becoming a "raven father," as well as observing them in their natural habitat, studying their daily routines, and in the process painting a vivid picture of the world as lived by the ravens. At the heart of this book are Heinrich's love and respect for these complex and engaging creatures, and through his keen observation andanalysis, we become their intimates too.Throughout history there has existed an extraordinary relationship between humans and ravens. Ravens, like early humans, are scavengers on the kills of great carnivores. As scavengers, ravens were associated with hunters they found in the north: wolves and, later, men. The trinity of wolf, man, and raven in the hunt is an extremely ancient one. In considering the appeal of the raven, Bernd Heinrich suspects that a meeting of the minds might reside in that hunting trinity.Heinrich's passion for ravens has led him around the world in his research. Mind of the Raven takes you on an exotic journey--from New England to Germany, Montana to Baffin Island in the high Arctic--offering dazzling accounts of how science works in the field, filtered through the eyes of a passionate observer of nature.Heinrich has a true gift; through his stories, his beautiful writing, illustrations, and photography, the ravens come alive. Each new discovery and insight into their behavior is thrilling to read. just as the title promises, the reader is given a rare glimpse into the mind of these wonderful creatures.Following the dictum of Leonardo da Vinci--"It is not enough to believe what you see. YOU Must also understand what you see"--Bernd Heinrich enables us to see the natural world through the eyes of a scientist. At once lyrical and scientific, Mind of the Raven is bound to be a modern classic.

    A group of young scientists, under the guidance of Dr. George Church, the most brilliant geneticist of our time, works to make fantasy reality by sequencing the DNA of a frozen woolly mammoth harvested from above the Arctic circle, and splicing elements of that sequence into the DNA of a modern elephant. Will they be able to turn the hybrid cells into a functional embryo and bring the extinct creatures to life in our modern world?Along with Church and his team of Harvard scientists, a world-famous conservationist and a genius Russian scientist plan to turn a tract of the Siberian tundra into Pleistocene Park, populating the permafrost with ancient herbivores as a hedge against an environmental ticking time bomb.

    But as Ocean Guardian founder William McKeever reveals, sharks are evolutionary marvels essential to maintaining a balanced ecosystem. We can learn much from sharks, he argues, and our knowledge about them continues to grow. The first book to reveal in full the hidden lives of sharks, Emperors of the Deep examines four species—Mako, Tiger, Hammerhead, and Great White—as never before, and includes fascinating details such as:Sharks are 50-million years older than trees;Sharks have survived five extinction level events, including the one that killed off the dinosaurs;Sharks have electroreception, a sixth-sense that lets them pick up on electric fields generated by living things;Sharks can dive 4,000 feet below the surface;Sharks account for only 6 human fatalities per year, while humans kill 100 million sharks per year.McKeever goes back through time to probe the shark’s pre-historic secrets and how it has become the world’s most feared and most misunderstood predator, and takes us on a pulse-pounding tour around the world and deep under the water’s surface, from the frigid waters of the Arctic Circle to the coral reefs of the tropical Central Pacific, to see sharks up close in their natural habitat. He also interviews ecologists, conservationists, and world-renowned shark experts, including the founders of Greenpeace’s Rainbow Warrior, the head of the Massachusetts Shark Research Program, and the self-professed “last great shark hunter.”At once a deep-dive into the misunderstood world of sharks and an urgent call to protect them, Emperors of the Deep celebrates this wild species that hold the key to unlocking the mysteries of the ocean—if we can prevent their extinction from climate change and human hunters.

    News of both the Ice Man's discovery and his age, which was put at over five thousand years, fascinated scientists and newspapers throughout the world. But what made Sykes's story particularly revelatory was his successful identification of a genetic descendant of the Ice Man, a woman living in Great Britain today. How was Sykes able to locate a living relative of a man who died thousands of years ago?In The Seven Daughters of Eve, he gives us a firsthand account of his research into a remarkable gene, which passes undiluted from generation to generation through the maternal line. After plotting thousands of DNA sequences from all over the world, Sykes found that they clustered around a handful of distinct groups. Among Europeans and North American Caucasians, there are, in fact, only seven. This conclusion was staggering: almost everyone of native European descent, wherever they may live throughout the world, can trace their ancestry back to one of seven women, the Seven Daughters of Eve.Naming them Ursula, Xenia, Helena, Velda, Tara, Katrine, and Jasmine, Sykes has created portraits of their disparate worlds by mapping the migratory patterns followed by millions of their ancestors. In reading the stories of these seven women, we learn exactly how our origins can be traced, how and where our ancient genetic ancestors lived, and how we are each living proof of the almost indestructible strands of DNA, which have survived over so many thousands of years. Indeed, The Seven Daughters of Eve is filled with dramatic stories: from Sykes's identification, using DNA samples from two living relatives, of the remains of Tsar Nicholas and Tsaress Alexandra, to the Caribbean woman whose family had been sold into slavery centuries before and whose ancestry Sykes was able to trace back to the Eastern coast of central Africa. Ultimately, Sykes's investigation reveals that, as a race, what humans have in common is more deeply embedded than what separates us.

    Photographer Glen Denny was a key figure in this golden age of climbing, capturing pioneering feats on camera while tackling challenging ascents himself.In entertaining short pieces enlivened by his iconic black-and-white images of Yosemite's big wall legends, Denny reveals a young man's coming of age and provides a vivid look at Yosemite’s early climbing culture. He relates such precarious achievements as hauling water in glass gallon jugs up the east face of Washington Column, nailing the 750-foot Rostrum in a punishing heat wave, and dangling overnight on El Capitan’s Dihedral Wall in a lightning storm. Each true tale captures the spirit of historic Camp 4, where Denny and others plan the next big climb while living on the cheap and dodging park rangers.

    Covering everything from snail sex to the manufacture of synthetic slug slime, Gordon takes us on a journey through the languid and magical world of these charismatic invertebrates. From essays like Grow Your Own Escargot to indispensable gardening tips, this book is chock-full of information on the much-maligned mollusks. Whether removing non-native slugs from your garden or following a native snail as it meanders across the forest floor, you'll never look at these underdogs the same way again. David George Gordon is the author of nineteen books about the natural world, including the best-selling Eat-a-Bug Cookbook and The Compleat Cockroach. Karen Luke Fildes is an accomplished artist who has studied at both the Art Institute of Seattle and Chapman University. Both live in Seattle.

    They have also become vibrant educational centers, full of engaging exhibits that share those discoveries with students and an enthusiastic general public.   At the heart of it all from the very start have been curators. Yet after three decades as a natural history curator, Lance Grande found that he still had to explain to people what he does. This book is the answer—and, oh, what an answer it is: lively, exciting, up-to-date, it offers a portrait of curators and their research  like none we’ve seen, one that conveys the intellectual excitement and the educational and social value of curation. Grande uses the personal story of his own career—most of it spent at Chicago’s storied Field Museum—to structure his account as he explores the value of research and collections, the importance of public engagement, changing ecological and ethical considerations, and the impact of rapidly improving technology. Throughout, we are guided by Grande’s keen sense of mission, of a job where the why is always as important as the what.   This beautifully written and richly illustrated book is a clear-eyed but loving account of natural history museums, their curators, and their ever-expanding roles in the twenty-first century.

    They attracted followers ranging from Thomas Jefferson, who laid out mastodon bones on the White House floor, to twentieth-century doctors who used their knowledge of new species to conquer epidemic diseases. Acclaimed science writer Richard Conniff brings these daredevil "species seekers" to vivid life. Alongside their globe-spanning tales of adventure, he recounts some of the most dramatic shifts in the history of human thought. At the start, everyone accepted that the Earth had been created for our benefit. We weren't sure where vegetable ended and animal began, we couldn't classify species, and we didn't understand the causes of disease. But all that changed as the species seekers introduced us to the pantheon of life on Earth—and our place within it.

    So little, in fact, that scientists and philosophers have, for centuries, been obsessed with what has become known as the “eel question”: Where do eels come from? What are they? Are they fish or some other kind of creature altogether? Even today, in an age of advanced science, no one has ever seen eels mating or giving birth, and we still don’t understand what drives them, after living for decades in freshwater, to swim great distances back to the ocean at the end of their lives. They remain a mystery.Drawing on a breadth of research about eels in literature, history, and modern marine biology, as well as his own experience fishing for eels with his father, Patrik Svensson writes a book about this unusual animal. In The Book of Eels, we meet renowned historical thinkers, from Aristotle to Sigmund Freud to Rachel Carson, for whom the eel was a singular obsession. And we meet the scientists who spearheaded the search for the eel’s point of origin, including Danish marine biologist Johannes Schmidt, who led research efforts in the early twentieth century, catching thousands upon thousands of eels, in the hopes of proving their birthing grounds in the Sargasso Sea.Blending memoir and nature writing, Svensson’s journey to understand the eel becomes an exploration of the human condition that delves into overarching issues about our roots and destiny, both as humans and as animals, and, ultimately, how to handle the biggest question of all: death.

    In The Botany of Desire, Michael Pollan ingeniously demonstrates how people and domesticated plants have formed a similarly reciprocal relationship. He masterfully links four fundamental human desires—sweetness, beauty, intoxication, and control—with the plants that satisfy them: the apple, the tulip, marijuana, and the potato. In telling the stories of four familiar species, Pollan illustrates how the plants have evolved to satisfy humankind’s most basic yearnings. And just as we’ve benefited from these plants, we have also done well by them. So who is really domesticating whom?

    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

    The renowned family of paleontologists—Louis Leakey, Mary Leakey, and their son Richard Leakey—has vastly expanded our understanding of human evolution. The Origin of Humankind is Richard Leakey’s personal view of the development of Homo Sapiens. At the heart of his new picture of evolution is the introduction of a heretical notion: once the first apes walked upright, the evolution of modern humans became possible and perhaps inevitable. From this one evolutionary step comes all the other evolutionary refinements and distinctions that set the human race apart from the apes. In fascinating sections on how and why modern humans developed a social organization, culture, and personal behavior, Leakey has much of interest to say about the development of art, language, and human consciousness.

    But despite the hype, Tyrannosaurus and the other tyrannosaurs are fascinating animals in their own right, and are among the best-studied of all dinosaurs.Tyrannosaurs started small, but over the course of 100 million years evolved into the giant carnivorous bone-crushers that continue to inspire awe in palaeontologists, screenplay writers, sci-fi novelists and the general public alike. Tyrannosaurus itself was truly impressive; it topped six tons, was more than 12m (40 feet) long, and had the largest head and most powerful bite of any land animal in history.The Tyrannosaur Chronicles tracks the rise of these dinosaurs, and presents the latest research into their biology, showing off more than just their impressive statistics - tyrannosaurs had feathers and fought and even ate each other. This book presents the science behind this research; it tells the story of the group through their anatomy, ecology and behaviour, exploring how they came to be the dominant terrestrial predators of the Mesozoic and, in more recent times, one of the great icons of biology.