Who were the first people who came to the land bridge joining northeastern Asia to Alaska and the northwest of North America? Where did they come from? How did they organize technology, especially in the context of settlement behavior?During the Pleistocene era, the people now known as Beringians dispersed across the varied landscapes of late-glacial northeast Asia and northwest North America.The twenty chapters gathered in this volume explore, in addition to the questions ...

With cultural remains dated unequivocally to 13,000 calendar years ago, Dry Creek assumed major importance upon its excavation and study by W. Roger Powers. The site was the first to conclusively demonstrate a human presence that could be dated to the same time as the Bering Land Bridge. As Powers and his team studied the site, their work verified initial expectations. Unfortunately, the research was never fully published.Dry Creek: The Archaeology and Paleoecology of a Late Pl...

In this landmark work on a subject too often dismissed as paranormal or disreputable, Jeff Meldrum gives us the first book on sasquatch to be written by a scientist with impeccable academic credentials, an objective look at the facts in a field mined with hoaxes and sensationalism.Meldrum reports on the work of a team of experts from a wide variety of fields who were assembled to examine the evidence for a large, yet undiscovered, North American primate. He reviews...

From flying squirrels to grizzly bears, and from torpid turtles to insects with antifreeze, the animal kingdom relies on some staggering evolutionary innovations to survive winter. Unlike their human counterparts, who must alter the environment to accommodate physical limitations, animals are adaptable to an amazing range of conditions.Examining everything from food sources in the extremely barren winter land-scape to the chemical composition that allows certain creatures to surviv...

The Palaeozoic or Primary Era spans a period of time ranging from 542 million to 251 million years ago. The name Paleozoic, derives from the fact that, in the past, it was considered the first geological age. The Paleozoic covers a range of about 300 million years, giving rise to many forms of life, until the appearance of thecodonts, commonly believed to be the ancestors of dinosaurs.

Earth's past is littered with the mysterious and unexplained: the pyramids, Easter Island, Stonehenge, dinosaurs, and the list goes on and on as science looks for clues to decipher these puzzles.One such mystery surrounds the now-extinct creature called the woolly mammoth. Author and meteorologist Michael Oard has studied the mammoth and its equally mysterious time period, the Ice Age, for many years and has come to some fascinating conclusions to help lift the fog engulfing the fac...

A new edition of the illustrated compendium that is "a gift to serious dinosaur enthusiasts" ( Science).What do we know about dinosaurs, and how do we know it? How did they grow, move, eat, and reproduce? Were they warm-blooded or cold-blooded? How intelligent were they? How are the various groups of dinosaurs related to each other, and to other kinds of living and extinct vertebrates? What can the study of dinosaurs tell us about the process of evolution?...

A photographic guide to Oklahomas Devonian trilobites. The geological history of Coal County, Oklahoma. Descriptions of rock formations where trilobites are found. Excavation and restoration of trilobites. A photographic atlas of the Lower Devonian trilobites of Oklahoma, with helpful information to aid in their identification.Trilobites are a well-known fossil group, possibly second most famous only to dinosaurs. With their easily fossilized exoskeleton, they left an extensive and...

The most authoritative illustrated book on flying reptiles availableFor 150 million years, the skies didn't belong to birds—they belonged to the pterosaurs. These flying reptiles, which include the pterodactyls, shared the world with the nonavian dinosaurs until their extinction 65 million years ago. Some pterosaurs, such as the giant azhdarchids, were the largest flying animals of all time, with wingspans exceeding thirty feet and standing heights comparable to mo...

A bold, illuminating new take on the love of animals that drove human evolution.Why do humans all over the world take in and nurture other animals? This behavior might seem maladaptive—after all, every mouthful given to another species is one that you cannot eat—but in this heartening new study, acclaimed anthropologist Pat Shipman reveals that our propensity to domesticate and care for other animals is in fact among our species' greatest strengths. For the last 2.6 million years, ...

Mankind has recently come to the shocking realization that our ancestors survived hundreds of abrupt and severe changes to Earth's climate. In this unique travelogue, William H. Calvin takes us around the globe and back in time, showing us how such cycles of cool, crash, and burn provided the impetus for enormous increases in the intelligence and complexity of human beings and warning us of human activities that could trigger similarly massive shifts in the planet's climate."Calvin ...

Two noted paleontologists present a detailed portrait of the family Canidae across 40 million years of evolution in this illustrated volume.After decades of research and analysis, paleontologists Xiaoming Wang and Richard H. Tedford established the modern framework for understanding the evolutionary relationship of canids. Combining their work with Mauricio Antón's reconstructions of both extinct and extant species, Wang and Tedford now present a nuanced and visual...