the walking whales from land to water in eight million years

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The Walking Whales

Author : J. G. M. "Hans" Thewissen
ISBN : 9780520959415
Genre : Science
File Size : 90. 35 MB
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Hans Thewissen, a leading researcher in the field of whale paleontology and anatomy, gives a sweeping first-person account of the discoveries that brought to light the early fossil record of whales. As evidenced in the record, whales evolved from herbivorous forest-dwelling ancestors that resembled tiny deer to carnivorous monsters stalking lakes and rivers and to serpentlike denizens of the coast. Thewissen reports on his discoveries in the wilds of India and Pakistan, weaving a narrative that reveals the day-to-day adventures of fossil collection, enriching it with local flavors from South Asian culture and society. The reader senses the excitement of the digs as well as the rigors faced by scientific researchers, for whom each new insight gives rise to even more questions, and for whom at times the logistics of just staying alive may trump all science. In his search for an understanding of how modern whales live their lives, Thewissen also journeys to Japan and Alaska to study whales and wild dolphins. He finds answers to his questions about fossils by studying the anatomy of otters and porpoises and examining whale embryos under the microscope. In the book's final chapter, Thewissen argues for approaching whale evolution with the most powerful tools we have and for combining all the fields of science in pursuit of knowledge.

The Walking Whales

Author : J. G. M. Thewissen
ISBN : 9780520277069
Genre : Nature
File Size : 36. 77 MB
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"A ... first-person account of the discoveries that brought to light the early fossil record of whales. As evidenced in the record, whales evolved from herbivorous forest-dwelling ancestors that resembled tiny deer to carnivorous monsters stalking lakes and rivers and to serpentlike denizens of the coast. Thewissen reports on his discoveries in the wilds of India and Pakistan, weaving a narrative that reveals the day-to-day adventures of fossil collection, enriching it with local flavors from South Asian culture and society"--Dust jacket flap.

Return To The Sea

Author : Annalisa Berta
ISBN : 9780520270572
Genre : Science
File Size : 38. 58 MB
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"Over the past 55 million years, mammals have returned to the sea many times and in many places. Annalisa Berta leads readers through this parade of transitions, highlighting how marine mammals have met the evolutionary challenge of living an aquatic life in a variety of ways. Return to the Sea weaves ecology, anatomy, and evolution into an ideal entry point for anyone interested in knowing more about one of the most fascinating phenomena in macroevolution."--Nicholas D. Pyenson, National Museum of Natural History, Smithsonian Institution "Berta is to be congratulated. She drew on her vast knowledge of marine mammals and their evolution to write an excellent, readable introduction to the group, including the latest discoveries."--J.G.M. Thewissen, Northeast Ohio Medical University "This wide-ranging and up-to-date survey of marine mammal biology and evolution is a fine introduction to the subject for undergraduates and anyone interested in mammals of the sea."--Daryl P. Domning, Howard University

Beasts Of Eden

Author : David Rains Wallace
ISBN : 9780520246843
Genre : Science
File Size : 21. 2 MB
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In this account of early mammals and their evolution, a naturalist presents fossil discoveries such as towering mammoths, tiny horses, and whales with legs, among other exotic extinct species, providing a perspective on the grandeur of evolution.

Flying Dinosaurs

Author : John Pickrell
ISBN : 9781742241760
Genre : Nature
File Size : 83. 82 MB
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Dinosaurs didn’t die out when an asteroid hit Earth 66 million years ago. Get ready to unthink what you thought you knew and journey into the deep, dark depths of the Jurassic. The discovery of the first feathered dinosaur in China in 1996 sent shockwaves through the palaeontological world. Were the feathers part of a complex mating ritual, or a stepping stone in the evolution of flight? And just how closely related T. rex to a chicken Award-winning journalist John Pickrell reveals how dinosaurs developed flight and became the birds in our backyards. He delves into the latest discoveries in China, the US, Europe and uncovers a thriving black market in fossils and infighting between dinosaur hunters, plus the controversial plan to use a chicken to bring dinosaurs back from the dead.

Adam And The Genome

Author : Scot McKnight
ISBN : 9781493406746
Genre : Religion
File Size : 30. 33 MB
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Genomic science indicates that humans descend not from an individual pair but from a large population. What does this mean for the basic claim of many Christians: that humans descend from Adam and Eve? Leading evangelical geneticist Dennis Venema and popular New Testament scholar Scot McKnight combine their expertise to offer informed guidance and answers to questions pertaining to evolution, genomic science, and the historical Adam. Some of the questions they explore include: - Is there credible evidence for evolution? - Do we descend from a population or are we the offspring of Adam and Eve? - Does taking the Bible seriously mean rejecting recent genomic science? - How do Genesis's creation stories reflect their ancient Near Eastern context, and how did Judaism understand the Adam and Eve of Genesis? - Doesn't Paul's use of Adam in the New Testament prove that Adam was a historical individual? The authors address up-to-date genomics data with expert commentary from both genetic and theological perspectives, showing that genome research and Scripture are not irreconcilable. Foreword by Tremper Longman III and afterword by Daniel Harrell.

The Bones Of Grace

Author : Tahmima Anam
ISBN : 9780062199317
Genre : Fiction
File Size : 38. 8 MB
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From the award-winning, nationally bestselling author of A Golden Age and The Good Muslim comes a lyrical, deeply moving modern love story about belonging, migration, tragedy, survival, and the mysteries of origins. On the eve of her departure to find the bones of the walking whale—the fossil that provides a missing link in our evolution—Zubaida Haque falls in love with Elijah Strong, a man she meets in a darkened concert hall in Boston. Their connection is immediate and intense, despite their differences: Elijah belongs to a prototypical American family; Zubaida is the adopted daughter of a wealthy Bangladeshi family in Dhaka. When a twist of fate sends her back to her hometown, the inevitable force of society compels her to take a very different path: she marries her childhood best friend and settles into a traditional Bangladeshi life. While her family is pleased by her obedience, Zubaida seethes with discontent. Desperate to finally free herself from her familial constraints, she moves to Chittagong to work on a documentary film about the infamous beaches where ships are destroyed, and their remains salvaged by locals who depend on the goods for their survival. Among them is Anwar, a shipbreaker whose story holds a key that will unlock the mysteries of Zubaida’s past—and the possibilities of a new life. As she witnesses a ship being torn down to its bones, this woman torn between the social mores of her two homes—Bangladesh and America—will be forced to strip away the vestiges of her own life . . . and make a choice from which she can never turn back.

The Rise Of Marine Mammals

Author : Annalisa Berta
ISBN : 9781421423265
Genre : Science
File Size : 23. 73 MB
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Marine mammals have long captured the attention of humans. Ancient peoples etched seals and dolphins on the walls of Paleolithic caves; today, engineers develop microprocessors to track these denizens of the deep. This groundbreaking book from highly respected marine mammal paleontologist Annalisa Berta delves into the story of the extraordinary adaptations that gave the world these amazing animals. The Rise of Marine Mammals reveals remarkable fossil record discoveries that shed light on the origins, relationships, and diversification of marine mammals. Focusing on evolution and paleobiology, Berta provides an overview of marine mammal species diversity, enhanced with gorgeous life restorations by Carl Buell, Robert Boessenecker, William Stout, and Ray Troll and extensive line drawings by graphics editor James L. Sumich. The book also considers ongoing conservation challenges, demonstrating how the fossil record of adaptation in response to past environmental shifts may illuminate the way that marine mammals respond to global climate change. This invaluable evolutionary framework is essential for helping us understand how best to protect and conserve today’s polar bears, whales, dolphins, seals, and fellow warm-blooded ocean dwellers. The Rise of Marine Mammals also describes exciting breakthroughs that rely on new techniques of study, including 3-D imaging, and molecular, finite element, and morphometric analyses, which have enhanced scientists’ understanding of everything from the anatomy of fetal whales to the genes behind limb loss in cetaceans. Mammalogists, paleontologists, and marine scientists will find Berta’s insights absorbing, while developmental and molecular biologists, geneticists, and ecologists exploring integrative research approaches will benefit from her fresh perspective.

Gaining Ground Second Edition

Author : Jennifer A. Clack
ISBN : 9780253005373
Genre : Science
File Size : 87. 26 MB
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Around 370 million years ago, a distant relative of a modern lungfish began a most extraordinary adventure—emerging from the water and laying claim to the land. Over the next 70 million years, this tentative beachhead had developed into a worldwide colonization by ever-increasing varieties of four-limbed creatures known as tetrapods, the ancestors of all vertebrate life on land. This new edition of Jennifer A. Clack's groundbreaking book tells the complex story of their emergence and evolution. Beginning with their closest relatives, the lobe-fin fishes such as lungfishes and coelacanths, Clack defines what a tetrapod is, describes their anatomy, and explains how they are related to other vertebrates. She looks at the Devonian environment in which they evolved, describes the known and newly discovered species, and explores the order and timing of anatomical changes that occurred during the fish-to-tetrapod transition.

Cenozoic Mammals Of Africa

Author : Lars Werdelin
ISBN : 9780520257214
Genre : Science
File Size : 73. 26 MB
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"This impressively comprehensive volume is a long-awaited and worthy successor to the now outdated 1978 classic, Evolution of African Mammals. A must-have reference work for everyone interested in mammalian evolution." David Pilbeam, Harvard University and the Peabody Museum of Archaeology and Ethnology --

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