Kategoria BISAC: Science >> Natural History

From the mid-eighteenth century to the early twentieth, a colorful band of amateur naturalists explored the most perilous corners of the planet to discover new life-forms. Amid globe-spanning tales of adventure, Richard Conniff recounts a dramatic historical shift, as humans finally discovered the pantheon of life on Earth-and our place within it.

The air we breathe is twenty-one percent oxygen, an amount higher than on any other known world. While we may take our air for granted, Earth was not always an oxygenated planet. How did it become this way? Donald Canfield--one of the world's leading authorities on geochemistry, earth history, and the early oceans--covers this vast history, emphasizing its relationship to the evolution of life and the evolving chemistry of the Earth. Canfield guides readers through the various lines of scientific evidence, considers some of the wrong turns and dead ends along the way, and highlights the...

Hadrosaurs--also known as duck-billed dinosaurs--are abundant in the fossil record. With their unique complex jaws and teeth perfectly suited to shred and chew plants, they flourished on Earth in remarkable diversity during the Late Cretaceous. So ubiquitous are their remains that we have learned more about dinosaurian paleobiology and paleoecology from hadrosaurs than we have from any other group. In recent years, hadrosaurs have been in the spotlight. Researchers around the world have been studying new specimens and new taxa seeking to expand and clarify our knowledge of these marvelous...

This fully updated edition of Birds of Nepal is the most comprehensive guide to the birds of this beautiful Himalayan country. The texts have been completely re-written for this edition and many of the illustrations have been replaced. In addition, maps have been included for the first time.

Every species recorded in Nepal is covered, including vagrants, with accurate distribution maps for most species. 142 color plates are featured, illustrating more than 790 species with text on facing pages for quick and easy reference. The comprehensive text covers identification, voice,...

Tortoises, those unmistakable turtles, evolved from a lineage that split off from the familiar pond turtles roughly 100 million years ago. Over time, these plant-eating land turtles spread around the world, growing to an enormous size (depending on the species) and living so long that they have become the stuff of legends. By most accounts, they are indeed the longest-lived of the turtles, with good records suggesting individuals may live as long as 180 years (anecdotal records suggest that some reach ages of 200 years or more).

Providing the first comprehensive treatment of North...

During the Early Cretaceous, lakes, meandering streams, and flood plains covered the region where the current foothills of Rioja now exist. Today the area is known for its wine and for the dozens of sites where footprints and trackways of dinosaurs, amphibians, and even pterosaurs can be seen. The dinosaurs that lived here 120 million years ago left their footsteps imprinted in the mud and moist soil. Now fossilized in rock, they have turned Rioja into one of the most valuable dinosaur footprint sites in all of Europe. Felix Perez-Lorente and his colleagues have published extensively on...

How did one elegant theory incite a scientific revolution?

Physicists have been exploring, debating, and questioning the general theory of relativity ever since Albert Einstein first presented it in 1915. Their work has uncovered a number of the universe's more surprising secrets, and many believe further wonders remain hidden within the theory's tangle of equations, waiting to be exposed. In this sweeping narrative of science and culture, astrophysicist Pedro Ferreira brings general relativity to life through the story of the brilliant physicists, mathematicians, and...

This book, writes marine biologist Evelyn B. Sherr, is meant to give others an understanding of the fascinating life of the region, from the smallest creatures in marsh mud and estuarine water, to the mummichogs and multitudes of other animals that find food and shelter in the vast expanses of marsh grass, in the sounds, and along the beaches of the Georgia Isles. Sherr not only spent years doing research in coastal Georgia, she began her family there. Although Sherr s career would take her around the world, this special place stuck with her. Here she shares her deep knowledge of the...