when life nearly died

Download Book When Life Nearly Died in PDF format. You can Read Online When Life Nearly Died here in PDF, EPUB, Mobi or Docx formats.

When Life Nearly Died

Author : Michael J. Benton
ISBN : 050028573X
Genre : History
File Size : 65. 84 MB
Format : PDF, Mobi
Download : 162
Read : 882

Get This Book


Documents the mass extinction of nearly 90 percent of life during the Permian period, discussing what caused the disaster and recent scientific research regarding catastrophic events.

When Life Nearly Died The Greatest Mass Extinction Of All Time Revised Edition

Author : Michael J. Benton
ISBN : 9780500773208
Genre : History
File Size : 89. 32 MB
Format : PDF, ePub
Download : 154
Read : 800

Get This Book


“The focus is the most severe mass extinction known in earth’s history. The science on which the book is based is up-to-date, thorough, and balanced. Highly recommended.” —Choice Today it is common knowledge that the dinosaurs were wiped out by a meteorite impact 65 million years ago that killed half of all species then living. It is far less widely understood that a much greater catastrophe took place at the end of the Permian period 251 million years ago: at least ninety percent of life on earth was destroyed. When Life Nearly Died documents not only what happened during this gigantic mass extinction but also the recent renewal of the idea of catastrophism: the theory that changes in the earth’s crust were brought about suddenly in the past by phenomena that cannot be observed today. Was the end-Permian event caused by the impact of a huge meteorite or comet, or by prolonged volcanic eruption in Siberia? The evidence has been accumulating, and Michael J. Benton gives his verdict at the end of the volume. The new edition brings the study of the greatest mass extinction of all time thoroughly up-to-date. In the twelve years since the book was originally published, hundreds of geologists and paleontologists have been investigating all aspects of how life could be driven to the brink of annihilation, and especially how life recovered afterwards, providing the foundations of modern ecosystems.

Mass Extinction

Author : Ashraf M.T. Elewa
ISBN : 3540759166
Genre : Science
File Size : 72. 23 MB
Format : PDF, Kindle
Download : 773
Read : 175

Get This Book


The present book combines three main aspects: five major mass extinctions; contributions on some other minor extinctions; and more importantly contributions on the current mass extinction. All three aspects are introduced through interesting studies of mass extinctions in diverse organisms ranging from small invertebrates to mammals and take account of the most accepted subjects discussing mass extinctions in insects, mammals, fishes, ostracods and molluscs.

When Life Strikes The President

Author : Jeffrey A. Engel
ISBN : 9780190650773
Genre : History
File Size : 22. 73 MB
Format : PDF, ePub
Download : 652
Read : 1178

Get This Book


What happens when life, so to speak, strikes the President of the United States? How do presidents and their families cope with illness, personal loss, and scandal, and how have such personal crises affected a president's ability to lead, shaped presidential decision-making in critical moments, and perhaps even altered the course of events? In asking such questions, the essays in this volume -- written by twelve leading scholars noted for their expertise on their respective subjects -- reveal alternately the frailty, the humanity, and the strength of character of some of America's most controversial presidents. Three of them deal with the death of children--the impact of the loss of a young son on Franklin Pierce, Abraham Lincoln, and Calvin Coolidge. Another shows how, when his father suffered a stroke, John F. Kennedy lost his most important adviser as the crisis in Cuba loomed. Three essays tell stories about notorious, self-inflicted scandals during the presidencies of Andrew Jackson, Richard Nixon, and Bill Clinton. Several of them focus on the effects of disability or illness in the Oval Office -- on Woodrow Wilson's stroke at the end of World War I; Franklin Roosevelt's paralysis while leading the country through the Great Depression and World War II; Ronald Reagan's struggles and changed priorities in the wake of an assassination attempt; and the bearing of depression and personality disorders of one kind or another on the actions Jackson, John Tyler, Lyndon Johnson, and Richard Nixon during their crucial years in office. While illuminating a considerable span of American history and providing new and significant analyses of American politics and foreign policy, these fascinating essays remind us about the personal side of presidential leadership, and that tomorrow is promised to no one.

Catastrophes And Lesser Calamities

Author : Tony Hallam
ISBN : 0191578150
Genre : Science
File Size : 39. 49 MB
Format : PDF, Mobi
Download : 265
Read : 549

Get This Book


This is a book about the dramatic periods in the Earth's history called mass extinctions - short periods (by geological standards) when life nearly died out on Earth. The most famous is the mass extinction that happened about 65 million years ago, and that caused the death of the dinosaurs. But that was not the worst mass extinction: that honour goes to the extinction at the end of the Permian Period, about 250 million years ago, when over 90% of life is thought to have become extinct. What caused these catastrophes? Was it the effects of a massive meteorite impact? There is evidence for such an impact about 65 million years ago. Or was it a period of massive volcanic activity? There is evidence in the rocks of huge lava flows at periods that match several of the mass extinctions. Was it something to do with climate change and sea level? Or was it a combination of some or all of these? The question has been haunting geologists for a number of years, and it forms one of the most exciting areas of research in geology today. In this book, Tony Hallam, a distinguished geologist and writer, looks at all the different theories and also what the study of mass extinctions might tell us about the future. If climate change is a key factor, we may well, as some scientists have suggested, be in a period of mass extinction of our own making.

Catastrophes And Lesser Calamities

Author : Anthony Hallam
ISBN : 0192806688
Genre : Science
File Size : 50. 53 MB
Format : PDF, ePub
Download : 765
Read : 753

Get This Book


Uses the geological record to trace historical and modern views on five mass extinction events, including the disappearance of dinosaurs.

Bringing Fossils To Life

Author : Donald R. Prothero
ISBN : 9780231536905
Genre : Science
File Size : 54. 11 MB
Format : PDF
Download : 885
Read : 1018

Get This Book


One of the leading textbooks in its field, Bringing Fossils to Life applies paleobiological principles to the fossil record while detailing the evolutionary history of major plant and animal phyla. It incorporates current research from biology, ecology, and population genetics, bridging the gap between purely theoretical paleobiological textbooks and those that describe only invertebrate paleobiology and that emphasize cataloguing live organisms instead of dead objects. For this third edition Donald R. Prothero has revised the art and research throughout, expanding the coverage of invertebrates and adding a discussion of new methodologies and a chapter on the origin and early evolution of life.

The Permian Extinction And The Tethys

Author : A. M. Celâl ?engör
ISBN : 9780813724485
Genre : Science
File Size : 55. 50 MB
Format : PDF, Kindle
Download : 119
Read : 832

Get This Book


The extinction that wiped out 95% of the living species at the end of the Paleozoic era can be explained by the fact that when it happened, all landmasses were one continent, Pangea, with an inner ocean, the Paleo-Tethys. This ocean included the richest n

Dinosaurs

Author : Michael J. Benton
ISBN : 0831723130
Genre : Juvenile Nonfiction
File Size : 65. 2 MB
Format : PDF, ePub, Mobi
Download : 198
Read : 853

Get This Book


Discusses our knowledge of the dinosaurs and the fossil evidence that supports it.

Introduction To International And Global Studies Second Edition

Author : Shawn C. Smallman
ISBN : 9781469621661
Genre : Political Science
File Size : 20. 5 MB
Format : PDF, Docs
Download : 139
Read : 172

Get This Book


This innovative introduction to international and global studies, updated and revised in a new edition, offers instructors in the social sciences and humanities a core textbook for teaching undergraduates in this rapidly growing field. Encompassing the latest scholarship in what is a markedly interdisciplinary endeavor, Shawn Smallman and Kimberley Brown introduce key concepts, themes, and issues and then examine each in lively chapters on essential topics that include the history of globalization; economic, political, and cultural globalization; security, energy, and development; health; agriculture and food; and the environment. Within these topics, the authors explore such timely and pressing subjects as commodity chains, labor (including present-day slavery), human rights, multinational corporations, and the connections among them. New to this edition: * The latest research on debates over privacy rights and surveillance since Edward Snowden's disclosures * Updates on significant political and economic developments throughout the world, including a new case study of European Union, Icelandic, and Greek responses to the 2008 fiscal crisis * The newest information about the rise of fracking, the Fukushima nuclear disaster, the decline of the Peak Oil movement, and climate change, including the latter's effects on the Arctic and Antarctica * A dedicated website with authors' blog and a teaching tab with syllabi, class activities, and well-designed, classroom-tested resources * An updated teacher's manual available online, including sample examination questions, additional resources for each chapter, and special assistance for teaching ESL students * Updated career advice for international studies majors

Top Download:

Best Books