princeton university press january 1999 (2 résultats)

Trade Paperback. Etat : VG. used trade paperback edition. lightly shelfworn, corners perhaps slightly bumped. pages and binding are clean, straight and tight. there are no marks to the text or other serious flaws.

Hardcover. Etat : New. In Jurassic Park, amber fossils provided the key to bringing dinosaurs back to life. Scientists in the movie extracted dinosaur blood from mosquitoes preserved for millions of years in amber -- hardened tree resin -- and used the blood's DNA to revive the creatures that terrified audiences around the globe, In this book, George and Roberta Poinar use amber for a similar act of revival -only they bring back an entire ecosystem. The Poinars are world leaders in the study of amber fossils and have spent years examining the uniquely rich supply that has survived from the ancient forests of the Dominican Republic. They draw on their research here to reconstruct in words, drawings, and spectacular color photographs the ecosystem that existed on the island of Hispaniola between fifteen and forty-five million years ago. The result is the most accurate picture scientists have yet produced of any tropical forest of the past. The specimens examined by the Poinars reflect amber's extraordinary qualities as a medium for preservation. Millions of years ago, countless plants, invertebrates, and small vertebrates were trapped in the sticky resin that flowed from the trees of ancient forests and, as that resin hardened into translucent, golden amber, they were preserved in almost perfect condition. Samples analyzed and illustrated here include a wide range of insects and plants -- many now extinct -as well as such vertebrates as frogs, lizards, birds, and small mammals. There are even frozen scenes of combat: an assassin bug grappling with a stingless bee, for example, and a spider attacking a termite. By examining these plants and animals and comparing them to related forms that exist today, theauthors shed new light on the behavior of these organisms as well as the environment and climate in which they lived and died. The Poinars present richly detailed drawings of how the forests once appeared. They discuss how and when life colonized Hispaniola and what caused some forms to become extinct Along the way, they describe how amber is formed, how and where it has been preserved, and how it is mined, sold, and occasionally forged for profit today. The book is a beautifully written and produced homage to a remarkable, vanished world.