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When the Invasion of Land Failed

When the Invasion of Land Failed
Author: George R. McGhee, Jr.
Publisher: Columbia University Press
Total Pages: 346
Release: 2013-11-12
Genre: Science
ISBN: 0231160577

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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 might have become the ecologically dominant forms of animal life on land. This book examines the profound evolutionary consequences of the Late Devonian extinctions, which shaped the composition of the modern terrestrial ecosystem. Only one group of four-limbed vertebrates now live on Earth while other tetrapod-like fishes are extinct. This gap is why the idea of “fish with feet” seems so peculiar yet these animals were once a vital part of our world.


When the Invasion of Land Failed

When the Invasion of Land Failed
Author: George R. McGhee Jr.
Publisher: Columbia University Press
Total Pages: 345
Release: 2013-10-22
Genre: Science
ISBN: 0231536364

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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 occurrence. Only one group of four-limbed vertebrates exists on Earth, while other tetrapod-like fishes are extinct. This gap is why the idea of "fish with feet" seems so peculiar to us, yet such animals were once a vital part of our world, and if the Devonian extinctions had not happened, members of these species, like the famous Acanthostega and Ichthyostega, might have continued to live in our rivers and lakes. Synthesizing decades of research and including a wealth of new discoveries, this accessible, comprehensive text explores the causes of the Devonian extinctions, the reasons vertebrates were so severely affected, and the potential evolution of the modern world if the extinctions had never taken place.


Operation Sea Lion

Operation Sea Lion
Author: Leo McKinstry
Publisher: Abrams
Total Pages: 481
Release: 2014-11-13
Genre: History
ISBN: 1468311123

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This “immaculately researched and compellingly written” WWII history sheds new light on Britain’s critical victory against Nazi invasion (The New Criterion). In the summer of 1940, the Nazi war machine was at its zenith. France, Denmark, Norway, and the Low Countries were all under occupation. Only Britain stood in the way of the complete triumph, and Hitler planned a two-pronged offensive?a blistering aerial bombardment followed by a land invasion?to subdue his final enemy. But for the first time in the war, Hitler did not prevail. As Leo McKinstry details in this fascinating new history, the British were far more ruthless and proficient than is usually recognized. The brilliance of the RAF in the Battle of Britain was not an exception but part of a pattern of magnificent organization that thwarted Hitler’s armies at every turn. Using a wealth of archival and primary source materials, Leo McKinstry provides a groundbreaking new assessment of the six fateful months in mid-1940 when Operation Sea Lion was all that stood between the Nazis and total victory.


The Oxford History of India

The Oxford History of India
Author: Vincent Arthur Smith
Publisher: Oxford, Clarendon Press
Total Pages: 880
Release: 1920
Genre: India
ISBN:

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Carboniferous Giants and Mass Extinction

Carboniferous Giants and Mass Extinction
Author: George R. McGhee Jr.
Publisher: Columbia University Press
Total Pages: 279
Release: 2018-08-07
Genre: Science
ISBN: 0231543387

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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 this comprehensive portrait of the effects of ancient climate change on global ecology. Carboniferous Giants and Mass Extinction examines the climatic conditions that allowed for the evolution of gigantic animals and the formation of the largest tropical rainforests ever to exist, which in time turned into the coal that made the industrial revolution possible—and fuels the engine of contemporary anthropogenic climate change. Exploring the strange and fascinating flora and fauna of the Late Paleozoic ice age world, McGhee focuses his analysis on the forces that brought this world to an abrupt and violent end. Synthesizing decades of research and new discoveries, this comprehensive book provides a wealth of insights into past and present extinction events and climate change.


The Evolution of Sea-power

The Evolution of Sea-power
Author: Percy Arthur Baxter Silburn
Publisher: London ; New York [etc.] : Longmans, Green
Total Pages: 314
Release: 1912
Genre: Naval art and science
ISBN:

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An Invasion that Failed

An Invasion that Failed
Author: Edwyn Henry Stuart Jones
Publisher:
Total Pages: 298
Release: 1950
Genre: French Expedition to Ireland, 1796-1797
ISBN:

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