Remnants of Ancient Life

Remnants of Ancient Life PDF

Author: Dale E. Greenwalt

Publisher: Princeton University Press

Published: 2023-01-17

Total Pages: 288

ISBN-13: 0691221154

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The revolution in science that is transforming our understanding of extinct life We used to think of fossils as being composed of nothing but rock and minerals, all molecular traces of life having vanished long ago. We were wrong. Remnants of Ancient Life reveals how the new science of ancient biomolecules—pigments, proteins, and DNA that once functioned in living organisms tens of millions of years ago—is opening a new window onto the evolution of life on Earth. Paleobiologists are now uncovering these ancient remnants in the fossil record with increasing frequency, shedding vital new light on long-extinct creatures and the lost world they inhabited. Dale Greenwalt is your guide to these astonishing breakthroughs. He explains how ancient biomolecules hold the secrets to how mammoths dealt with the bitter cold, what colors dinosaurs exhibited in mating displays, how ancient viruses evolved to become more dangerous, and much more. Each chapter discusses different types of biomolecules and the insights they provide about the physiology, behavior, and evolution of extinct organisms, many of which existed long before the age of dinosaurs. A marvelous adventure of discovery, Remnants of Ancient Life offers an unparalleled look at an emerging science that is transforming our picture of the remote past. You will never think of fossils in the same way again.

Ancient and Fossil Bone Collagen Remnants

Ancient and Fossil Bone Collagen Remnants PDF

Author: Brian Thomas (Science writer)

Publisher:

Published: 2019

Total Pages: 137

ISBN-13: 9781946246370

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"Do creation scientists do actual science, or do they just propagate religious talking points? Ancient and Fossil Bone Collagen Remnants, based on Dr. Brian Thomas’ PhD dissertation, answers this question. Intended for the technical science reader, it reveals results from research projects designed to address questions about the presence or absence, geographic and stratigraphic extent, and decay rate of collagen in ancient bones. Not only do the experiments and descriptions found in this volume show that yes, creation scientists do real science, but they also provide the solid technical background needed to address the question of why short-lived collagen has been found in supposedly very old dinosaur bones"--Publisher's description.

A History of Life in 100 Fossils

A History of Life in 100 Fossils PDF

Author: Paul D. Taylor

Publisher: Smithsonian Institution

Published: 2014-10-14

Total Pages: 212

ISBN-13: 1588344827

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A History of Life in 100 Fossils showcases 100 key fossils that together illustrate the evolution of life on earth. Iconic specimens have been selected from the renowned collections of the two premier natural history museums in the world, the Smithsonian Institution, Washington, and the Natural History Museum, London. The fossils have been chosen not only for their importance in the history of life, but also because of the visual story they tell. This stunning book is perfect for all readers because its clear explanations and beautiful photographs illuminate the significance of these amazing pieces, including 500 million-year-old Burgess Shale fossils that provide a window into early animal life in the sea, insects encapsulated by amber, the first fossil bird Archaeopteryx, and the remains of our own ancestors.

Cradle of Life

Cradle of Life PDF

Author: J. William Schopf

Publisher: Princeton University Press

Published: 2021-10-12

Total Pages: 404

ISBN-13: 0691237573

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One of the greatest mysteries in reconstructing the history of life on Earth has been the apparent absence of fossils dating back more than 550 million years. We have long known that fossils of sophisticated marine life-forms existed at the dawn of the Cambrian Period, but until recently scientists had found no traces of Precambrian fossils. The quest to find such traces began in earnest in the mid-1960s and culminated in one dramatic moment in 1993 when William Schopf identified fossilized microorganisms three and a half billion years old. This startling find opened up a vast period of time--some eighty-five percent of Earth's history--to new research and new ideas about life's beginnings. In this book, William Schopf, a pioneer of modern paleobiology, tells for the first time the exciting and fascinating story of the origins and earliest evolution of life and how that story has been unearthed. Gracefully blending his personal story of discovery with the basics needed to understand the astonishing science he describes, Schopf has produced an introduction to paleobiology for the interested reader as well as a primer for beginning students in the field. He considers such questions as how did primitive bacteria, pond scum, evolve into the complex life-forms found at the beginning of the Cambrian Period? How do scientists identify ancient microbes and what do these tiny creatures tell us about the environment of the early Earth? (And, in a related chapter, Schopf discusses his role in the controversy that swirls around recent claims of fossils in the famed meteorite from Mars.) Like all great teachers, Schopf teaches the non-specialist enough about his subject along the way that we can easily follow his descriptions of the geology, biology, and chemistry behind these discoveries. Anyone interested in the intriguing questions of the origins of life on Earth and how those origins have been discovered will find this story the best place to start.

Remnants of the First Earth

Remnants of the First Earth PDF

Author: Ray Young Bear

Publisher: Open Road + Grove/Atlantic

Published: 2007-12-01

Total Pages: 372

ISBN-13: 0802195881

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The American Indian author of Black Eagle Child paints “a portrait of a writer struggling both to preserve his people’s heritage and to turn it into art” (The New York Times Book Review). Ray A. Young Bear’s work has been called “magnificent” by the New York Times and “a national treasure” by the Bloomsbury Review. Dazzlingly original, but with deep roots in his traditional Mesquakie culture, Young Bear is a master wordsmith poised with trickster-like aplomb between the ancient world of his forefathers and the ever-encroaching “blurred face of modernity.” Remnants of the First Earth continues the story of Edgar Bearchild—Young Bear’s fictionalized alter ego—which began with Black Eagle Child, a New York Times Notable Book for 1992. Young Bear revisits the Black Eagle Child Settlement and its residents, including Ted Facepaint, Rose Grassleggings, Junior Pipestar, Lorna Bearcap, and Luciano Bearchild. At the center of the novel is a murder investigation involving a powerful shaman holding court at the local Ramada Inn, negligent white cops from nearby Why Cheer, and corrupt tribal authorities. This lyrical narrative swirls through the present and into the mysteries of the age-old stories and myths that still haunt, inform, and enlighten this uniquely American community. “Young Bear’s prose pulses with lyrical ferocity, blending narrative, verse and tribal myth in a seamless web . . . Young Bear, an acclaimed poet, here emerges as a major Native novelist.” —Publishers Weekly

Ancient Earth Mysteries

Ancient Earth Mysteries PDF

Author: J. C. Vintner

Publisher: AEM Publishing

Published: 2011-09-02

Total Pages: 101

ISBN-13:

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Beginner's Guide to Ancient Earth Mysteries: Is humanity the first creation of intelligent beings? Do similar human-type species exist throughout the cosmos? If so, have those species mastered technologies only to self-destruct in an unfortunate series of events? The Universe is unbelievably enormous, this is undisputed. It's extremely selfish to think we are the only existing intelligent life. Science and religion are on the verge of discovering the truth. Super ancient societies and their archaeological evidence uncovered to this day is a vault of stored information waiting to be unlocked. All we need to do is find the key. Help us uncover the truth by learning about Ancient Earth Mysteries.

The Remnants of War

The Remnants of War PDF

Author: John Mueller

Publisher: Cornell University Press

Published: 2013-02-15

Total Pages: 272

ISBN-13: 9780801459573

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"War... is merely an idea, an institution, like dueling or slavery, that has been grafted onto human existence. It is not a trick of fate, a thunderbolt from hell, a natural calamity, or a desperate plot contrivance dreamed up by some sadistic puppeteer on high. And it seems to me that the institution is in pronounced decline, abandoned as attitudes toward it have changed, roughly following the pattern by which the ancient and formidable institution of slavery became discredited and then mostly obsolete."—from the Introduction War is one of the great themes of human history and now, John Mueller believes, it is clearly declining. Developed nations have generally abandoned it as a way for conducting their relations with other countries, and most current warfare (though not all) is opportunistic predation waged by packs—often remarkably small ones—of criminals and bullies. Thus, argues Mueller, war has been substantially reduced to its remnants—or dregs—and thugs are the residual combatants. Mueller is sensitive to the policy implications of this view. When developed states commit disciplined troops to peacekeeping, the result is usually a rapid cessation of murderous disorder. The Remnants of War thus reinvigorates our sense of the moral responsibility bound up in peacekeeping. In Mueller's view, capable domestic policing and military forces can also be effective in reestablishing civic order, and the building of competent governments is key to eliminating most of what remains of warfare.

Earth System History

Earth System History PDF

Author: Steven M. Stanley

Publisher: Macmillan

Published: 2005

Total Pages: 604

ISBN-13: 9780716739074

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Designed for a new generation of readers, Stanley's Earth System History is a reforging of his Exploring Earth and Life Through Time. Adopting an earth system approach throughout, Earth System History shows students how Earth's ecosystem has developed over time and how events in the past provide a perspective for dealing with present and future changes. Clear and concise, the new Second Edition of this introduction to historical geology is perfect for one-term non-majors courses and contains lots of new content and improved visuals.

The Age of Mammals

The Age of Mammals PDF

Author: Chris Manias

Publisher: University of Pittsburgh Press

Published: 2023-06-27

Total Pages: 456

ISBN-13: 0822989948

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When people today hear “paleontology,” they immediately think of dinosaurs. But for much of the history of the discipline, dramatic demonstrations of the history of life focused on the developmental history of mammals. The Age of Mammals examines how nineteenth-century scholars, writers, artists, and public audiences understood the animals they regarded as being at the summit of life. For them, mammals were crucial for understanding the formation (and possibly the future) of the natural world. Yet, as Chris Manias reveals, this combined with more troubling notions: that seemingly promising creatures had been swept aside in the “struggle for life,” or that modern biodiversity was impoverished compared to previous eras. Why some prehistoric creatures, such as the saber-toothed cat and ground sloth, had become extinct, while others seemed to have been the ancestors of familiar animals like elephants and horses, was a question loaded with cultural assumptions, ambiguity, and trepidation. How humans related to deep developmental processes, and whether “the Age of Man” was qualitatively different from the Age of Mammals, led to reflections on humanity’s place within the natural world. With this book, Manias considers the cultural resonance of mammal paleontology from an international perspective—how reconstructions of the deep past of fossil mammals across the world conditioned new understandings of nature and the current environment.