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The fourth book in USA Today bestselling author Nicholas Sansbury Smith's propulsive post-apocalyptic series about one man's mission to save the world. Central Command is gone, the military is fractured, and the surviving members of Team Ghost, led by Master Sergeant Reed Beckham, have been pushed to the breaking point. Betrayed by the country they swore to defend and surrounded by enemies on all sides, Team Ghost has one mission left: protect Dr. Kate Lovato and Dr. Pat Ellis while they develop a weapon to defeat the Variants once and for all. But after a grisly discovery in Atlanta, Kate and Ellis realize their weapon might not be able to stop the evolution of the monsters. Joined by unexpected allies and facing a new threat none of them saw coming, the survivors are running out of time to save the human race from extinction. There's a storm on the horizon. . .
This 2005 edition of The Evolution and Extinction of the Dinosaurs is a unique, comprehensive treatment of this fascinating group of organisms. It is a detailed survey of dinosaur origins, their diversity, and their eventual extinction. The book can easily be used as a teaching textbook for a class, but it is also written as a series of readable, entertaining essays covering important and timely topics appealing to non-specialists and all dinosaur enthusiasts: birds as 'living dinosaurs', the new feathered dinosaurs from China, 'warm-bloodedness'. Along the way, the reader learns about dinosaur functional morphology, physiology, and systematics using cladistic methodology - in short, how professional paleontologists and dinosaur experts go about their work, and why they find it so rewarding. The book is spectacularly illustrated by John Sibbick, a world-famous illustrator of dinosaurs, commissioned exclusively for this book.
For centuries, science has been searching for clues to the disappearance of the dinosaurs without answering a critical question - Are all the dinosaurs really extinct? In The Mistaken Extinction: Dinosaur Evolution and the Origin of Birds, crackerjack paleontologists Lowell Dingus, President of Infoquest, a nonprofit education and research foundation, and former Director of the Fossil Hall Renovation at the American Museum of Natural History and Timothy Rowe, J. Nalle Gregory Regents Professor of Geology at the University of Texas, Austin, and Curator of Vertebrate Paleontology at the Texas Memorial Museum lead us on an adventurous tour through the history of our own planet Earth. And they force us to face a shocking truthThe answer to that critical question is no.
Donald R. Prothero's science books combine leading research with first-person narratives of discovery, injecting warmth and familiarity into a profession that has much to offer nonspecialists. Bringing his trademark style and wit to an increasingly relevant subject of concern, Prothero links the climate changes that have occurred over the past 200 million years to their effects on plants and animals. In particular, he contrasts the extinctions that ended the Cretaceous period, which wiped out the dinosaurs, with those of the later Eocene and Oligocene epochs. Prothero begins with the "greenhouse of the dinosaurs," the global-warming episode that dominated the Age of Dinosaurs and the early Age of Mammals. He describes the remarkable creatures that once populated the earth and draws on his experiences collecting fossils in the Big Badlands of South Dakota to sketch their world. Prothero then discusses the growth of the first Antarctic glaciers, which marked the Eocene-Oligocene transition, and shares his own anecdotes of excavations and controversies among colleagues that have shaped our understanding of the contemporary and prehistoric world. The volume concludes with observations about Nisqually Glacier and other locations that show how global warming is happening much quicker than previously predicted, irrevocably changing the balance of the earth's thermostat. Engaging scientists and general readers alike, Greenhouse of the Dinosaurs connects events across thousands of millennia to make clear the human threat to natural climate change.
This book explores the prospects for survival of what we have come to know as â oethe intellectualâ in the post-Gutenberg age. It addresses the contemporary history of this â oespeciesâ spawned in the print age, meditating on the precarious future of international intellectual life in the digital era of nanosecond soundbites, fake news, smart phones, and clicks and scrolls in lieu of reading. The book ponders these issues as it addresses the examples of a diverse group of British, American, French, and German intellectuals of the post- World War II era. These â oecase historiesâ showcase concretely the â oestate of the cultureâ in the context of particular lives, offering diverse intellectual portraiture featuring a wide range of writers across the ideological spectrum. The key family resemblance of these figures is that most of them are contrarians, regardless of whether they were freelance writers or academic intellectuals, American or British or European, and chiefly imaginative writers or non-fiction writers and scholars. Among the intellectuals discussed are George Orwell, Dwight Macdonald, Irving Howe, Camille Paglia, Albert Camus, Robert Havemann, and others. Regardless of which intellectual domains occupied their energies, the histories of all of them yield insight into the transformation of cultural life in recent decades and the contrasting challenges faced by intellectuals of earlier eras versus our own. These issues are of paramount significance for all those who care about the life of the mind and the future of homo sapiens.
Since George Gaylord Simpson published Tempo and Mode in Evolution in 1944, discoveries in paleontology and genetics have abounded. This volume brings together the findings and insights of today's leading experts in the study of evolution, including Ayala, W. Ford Doolittle, and Stephen Jay Gould. The volume examines early cellular evolution, explores changes in the tempo of evolution between the Precambrian and Phanerozoic periods, and reconstructs the Cambrian evolutionary burst. Long-neglected despite Darwin's interest in it, species extinction is discussed in detail. Although the absence of data kept Simpson from exploring human evolution in his book, the current volume covers morphological and genetic changes in human populations, contradicting the popular claim that all modern humans descend from a single woman. This book discusses the role of molecular clocks, the results of evolution in 12 populations of Escherichia coli propagated for 10,000 generations, a physical map of Drosophila chromosomes, and evidence for "hitchhiking" by mutations.
Evolution on islands differs in a number of important ways from evolution on mainland areas. Over millions of years of isolation, exceptional and sometimes bizarre mammals evolved on islands, such as pig-sized elephants and hippos, giant rats and gorilla-sized lemurs that would have been formidable to their mainland ancestors. This timely and innovative book is the first to offer a much-needed synthesis of recent advances in the exciting field of the evolution and extinction of fossil insular placental mammals. It provides a comprehensive overview of current knowledge on fossil island mammals worldwide, ranging from the Oligocene to the onset of the Holocene. The book addresses evolutionary processes and key aspects of insular mammal biology, exemplified by a variety of fossil species. The authors discuss the human factor in past extinction events and loss of insular biodiversity. This accessible and richly illustrated textbook is written for graduate level students and professional researchers in evolutionary biology, palaeontology, biogeography, zoology, and ecology.
This book is the first of its kind, providing in-depth analysis of the retrograde evolution occurring during major extinction periods. The text offers a non-strictly adaptative explanation of repetition of phyla after the major extinctions, utilizing a study of seven phylogenetically distinct groups. This opens a new experimental field in evolutionary biology with the possibility of reconstructing ancestral forms in lab by applying artificial stresses.
Et argument for, at mennesket fra Afrika spredte sig ud over hele jordkloden, efterhånden som deres tekniske færdigheder blev større og større