The Great Paleolithic War

How Science Forged an Understanding of America's Ice Age Past

Author: David J. Meltzer

Publisher: University of Chicago Press

ISBN:

Category: History

Page: 670

View: 810

Only a few years after the discovery in Europe in the late 1850s that humanity had roots predating history and the Biblical chronicles, and reaching deep into the Pleistocene, came the suggestion that North American prehistory might be just as old. And why not? There seemed to be an exact synchronism [of geological strata] between Europe and America,” and so by extension there ought to be a parallelism as to the antiquity of man.” That triggered an eager search for traces of the people who may have occupied North America in the recesses of the Ice Age. The Great Paleolithic War is the history of the longstanding and bitter dispute in North America over whether people had arrived here in Ice Age times.

Land Bridges

Ancient Environments, Plant Migrations, and New World Connections

Author: Alan Graham

Publisher: University of Chicago Press

ISBN:

Category: Science

Page: 288

View: 994

Land bridges are the causeways of biodiversity. When they form, organisms are introduced into a new patchwork of species and habitats, forever altering the ecosystems into which they flow; and when land bridges disappear or fracture, organisms are separated into reproductively isolated populations that can evolve independently. More than this, land bridges play a role in determining global climates through changes to moisture and heat transport and are also essential factors in the development of biogeographic patterns across geographically remote regions. In this book, paleobotanist Alan Graham traces the formation and disruption of key New World land bridges and describes the biotic, climatic, and biogeographic ramifications of these land masses’ changing formations over time. Looking at five land bridges, he explores their present geographic setting and climate, modern vegetation, indigenous peoples (with special attention to their impact on past and present vegetation), and geologic history. From the great Panamanian isthmus to the boreal connections across the North Atlantic and North Pacific Oceans that allowed exchange of organisms between North America, Europe, and Asia, Graham’s sweeping, one-hundred-million-year history offers new insight into the forces that shaped the life and land of the New World.

Ladies' Home Journal

Author: Louisa Knapp

Publisher:

ISBN:

Category: Women's periodicals

Page:

View: 411

Forthcoming Books

Author: Rose Arny

Publisher:

ISBN:

Category: American literature

Page:

View: 691