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The Geometry of Evolution
The metaphor of the adaptive landscape - that evolution via the process of natural selection can be visualized as a journey across adaptive hills and valleys, mountains and ravines - permeates both evolutionary biology and the philosophy of science. The focus of this 2006 book is to demonstrate to the reader that the adaptive landscape concept can be put into actual analytical practice through the usage of theoretical morphospaces - geometric spaces of both existent and non-existent biological form - and to demonstrate the power of the adaptive landscape concept in understanding the process of evolution. The adaptive landscape concept further allows us to take a spatial approach to the concepts of natural selection, evolutionary constraint and evolutionary development. For that reason, this book relies heavily on spatial graphics to convey the concepts developed within these pages, and less so on formal mathematics.
The Late Devonian Mass Extinction
"Based on two decades of research, The Late Devonian Mass Extinction reviews the many theories that have been presented to explain the global mass extinction that struck the earth over 367 million years ago, considering in particular the possibility that the extinction was triggered by multiple impacts of extraterrestrial objects."--Publisher's description.
Convergent Evolution
Convergent evolution occurs on all levels, from tiny organic molecules to entire ecosystems of species.
On the Frontline in the Cold War
He also led the movement to get Greece and Turkey into NATO, using them as a bulwark against encroachment in the Middle East. McGhee accounts, using his hitherto unpublished field notes taken while he was special assistant to the Secretary of State, his attempts to cope with the Arab Refugee problem and the hostilities that followed the emergence of the state of Israel. McGhee served in Guam with Curtis LeMay and was involved in the bombing of Japan and the dropping of nuclear bombs on Hiroshima and Nagasaki. He negotiated with Nehru, Haile Selassie, the Shah of Iran, and Ibn Saud to protect U.S. interests in the Middle East.
Theoretical Morphology
McGhee describes the steps involved in defining the geometric parameters (theoretical morphospaces) for an organic form in order to generate a spectrum of other possible forms that have never actually appeared. The book also addresses the simulation of actual processes of morphogenesis, with the goal of attaining a more nuanced comprehension of how evolutionary processes work. The book covers theoretical morphospaces, including those for univalved, bivalved, discrete, and branching growth systems.
Carboniferous Giants and Mass Extinction
Picture a world of dog-sized scorpions and millipedes as long as a car; tropical rainforests with trees towering over 150 feet into the sky and a giant polar continent five times larger than Antarctica. That world was not imaginary; it was the earth more than 300 million years ago in the Carboniferous period of the Paleozoic era. In Carboniferous Giants and Mass Extinction, George R. McGhee Jr. explores that ancient world, explaining its origins; its downfall in the end-Permian mass extinction, the greatest biodiversity crisis to occur since the evolution of animal life on Earth; and how its legacies still affect us today. McGhee investigates the consequences of the Late Paleozoic ice age in...
The Other Alliance
Using previously classified documents and original interviews, The Other Alliance examines the channels of cooperation between American and West German student movements throughout the 1960s and early 1970s, and the reactions these relationships provoked from the U.S. government. Revising the standard narratives of American and West German social mobilization, Martin Klimke demonstrates the strong transnational connections between New Left groups on both sides of the Atlantic. Klimke shows that the cold war partnership of the American and German governments was mirrored by a coalition of rebelling counterelites, whose common political origins and opposition to the Vietnam War played a vital ...
Hearings
None
When the Invasion of Land Failed
The invasion of land by ocean-dwelling plants and animals was one of the most revolutionary events in the evolution of life on Earth, yet the animal invasion almost failed—twice—because of the twin mass extinctions of the Late Devonian Epoch. Some 359 to 375 million years ago, these catastrophic events dealt our ancestors a blow that almost drove them back into the sea. If those extinctions had been just a bit more severe, spiders and insects—instead of vertebrates—might have become the ecologically dominant forms of animal life on land. This book examines the profound evolutionary consequences of the Late Devonian extinctions and the various theories proposed to explain their occurr...
