The fifth book in USA Today bestselling author Nicholas Sansbury Smith's propulsive post-apocalyptic series about one man's mission to save the world. Almost seven weeks have passed since the Hemorrhage Virus ravaged the world. The remnants of the United States military have regrouped and relocated Central Command to the George Washington Carrier Strike Group. It's here, in the North Atlantic, that President Jan Ringgold and Vice President George Johnson prepare to deploy a new bioweapon and embark on the final mission to take back the country from the Variants. With his home gone and his friends kidnapped, Master Sergeant Reed Beckham and his remaining men must take drastic measures to save what's left of the human race. The end is here... pick up the series that D. J. Molles said "delivers unrelenting, unmerciful action" before it's too late! The Extinction Cycle: Book 1: Extinction HorizonBook 2: Extinction EdgeBook 3: Extinction AgeBook 4: Extinction EvolutionBook 5: Extinction EndBook 6: Extinction AftermathBook 7: Extinction War

Are we in imminent danger of extinction? Yes, we probably are, argues John Leslie in his chilling account of the dangers facing the human race as we approach the second millenium. The End of the World is a sobering assessment of the many disasters that scientists have predicted and speculated on as leading to apocalypse. In the first comprehensive survey, potential catastrophes - ranging from deadly diseases to high-energy physics experiments - are explored to help us understand the risks. One of the greatest threats facing humankind, however, is the insurmountable fact that we are a relatively young species, a risk which is at the heart of the 'Doomsday Argument'. This argument, if correct, makes the dangers we face more serious than we could have ever imagined. This more than anything makes the arrogance and ignorance of politicians, and indeed philosophers, so disturbing as they continue to ignore the manifest dangers facing future generations.

Broadening the basis of information on the topic of the Cretaceous extinction, this book particularly highlights evidence that points away from the global catastrophic scenario, towards a fossil based theory suggesting that a multitude of factors resulted in the period's radical changes.

Some 250 million years ago, the earth suffered the greatest biological crisis in its history. Around 95 percent of all living species died out—a global catastrophe far greater than the dinosaurs' demise 185 million years later. How this happened remains a mystery. But there are many competing theories. Some blame huge volcanic eruptions that covered an area as large as the continental United States; others argue for sudden changes in ocean levels and chemistry, including burps of methane gas; and still others cite the impact of an extraterrestrial object, similar to what caused the dinosaurs' extinction. Extinction is a paleontological mystery story. Here, the world's foremost authority on the subject provides a fascinating overview of the evidence for and against a whole host of hypotheses concerning this cataclysmic event that unfolded at the end of the Permian. After setting the scene, Erwin introduces the suite of possible perpetrators and the types of evidence paleontologists seek. He then unveils the actual evidence--moving from China, where much of the best evidence is found; to a look at extinction in the oceans; to the extraordinary fossil animals of the Karoo Desert of South Africa. Erwin reviews the evidence for each of the hypotheses before presenting his own view of what happened. Although full recovery took tens of millions of years, this most massive of mass extinctions was a powerful creative force, setting the stage for the development of the world as we know it today. In a new preface, Douglas Erwin assesses developments in the field since the book's initial publication.

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... pick up the series that D. J. Molles said "delivers unrelenting, unmerciful action" before it's too late! The Extinction Cycle: Book 1: Extinction HorizonBook 2: Extinction EdgeBook 3: Extinction AgeBook 4: Extinction EvolutionBook 5: Extinction EndBook 6: Extinction AftermathBook 7: Extinction War

A highly readable introduction to the causes of extinction, the different types of extinction, and how relevant it is to the world today More than 999 of every 1,000 species that have ever lived on the planet have become extinct. As part of evolution, extinction of the old allows emergence of the new. It is integral to the Earth's continually changing range and richness of life forms. This book discusses today's key issues, from biodiversity and conservation to the threat of human extinction, and explores the major extinction events of the past, explaining how scientists know all this. Throughout the book there are engaging extinction case studies from around the world showing, for example, how local extinctions such as the large blue butterfly can be reversed. Presenting the latest research in an accessible and engaging way, this is a complete introduction to an important and often complex subject.

The fascinating lives and puzzling demise of some of the largest animals on earth. Until a few thousand years ago, creatures that could have been from a sci-fi thriller—including gorilla-sized lemurs, 500-pound birds, and crocodiles that weighed a ton or more—roamed the earth. These great beasts, or “megafauna,” lived on every habitable continent and on many islands. With a handful of exceptions, all are now gone. What caused the disappearance of these prehistoric behemoths? No one event can be pinpointed as a specific cause, but several factors may have played a role. Paleomammalogist Ross D. E. MacPhee explores them all, examining the leading extinction theories, weighing the evidence, and presenting his own conclusions. He shows how theories of human overhunting and catastrophic climate change fail to account for critical features of these extinctions, and how new thinking is needed to elucidate these mysterious losses. Along the way, we learn how time is determined in earth history; how DNA is used to explain the genomics and phylogenetic history of megafauna—and how synthetic biology and genetic engineering may be able to reintroduce these giants of the past. Until then, gorgeous four-color illustrations by Peter Schouten re-create these megabeasts here in vivid detail.