Today we can see a recreation of the making of the Laetoli footprints at the American Museum of Natural History, in a stunning diorama which depicts two of our human forebears walking side by side through a snowy landscape of volcanic ash. But how do we know what these three-million-year-old relatives looked like? How have we reconstructed the eons-long journey from our first ancient steps to where we stand today? In short, how do we know what we think we know about human evolution? In The Fossil Trail, Ian Tattersall, the head of the Anthropology Department at the American Museum of Natural History, takes us on a sweeping tour of the study of human evolution, offering a colorful history of fossil discoveries and a revealing insider's look at how these finds have been interpreted--and misinterpreted--through time. All the major figures and discoveries are here. We meet Lamarck and Cuvier and Darwin (we learn that Darwin's theory of evolution, though a bombshell, was very congenial to a Victorian ethos of progress), right up to modern theorists such as Niles Eldredge and Stephen Jay Gould. Tattersall describes Dubois's work in Java, the many discoveries in South Africa by pioneers such as Raymond Dart and Robert Broom, Louis and Mary Leakey's work at Olduvai Gorge, Don Johanson's famous discovery of Lucy (a 3.4 million-year-old female hominid, some 40% complete), and the more recent discovery of the Turkana Boy, even more complete than Lucy, and remarkably similar to modern human skeletons. He discusses the many techniques available to analyze finds, from fluorine analysis (developed in the 1950s, it exposed Piltdown as a hoax) and radiocarbon dating to such modern techniques as electron spin resonance and the analysis of human mitochondrial DNA. He gives us a succinct picture of what we presently think our family tree looks like, with at least three genera and perhaps a dozen species through time (though he warns that this greatly underestimates the actual diversity of hominids over the past two million or so years). And he paints a vivid, insider's portrait of paleoanthropology, the dogged work in the broiling sun, searching for a tooth, or a fractured corner of bone, amid stone litter and shadows, with no guarantee of ever finding anything. And perhaps most important, Tattersall looks at all these great researchers and discoveries within the context of their social and scientific milleu, to reveal the insidious ways that the received wisdom can shape how we interpret fossil findings, that what we expect to find colors our understanding of what we do find. Refreshingly opinionated and vividly narrated, The Fossil Trail is the only book available to general readers that offers a full history of our study of human evolution. A fascinating story with intriguing turns along the way, this well-illustrated volume is essential reading for anyone curious about our human origins.

    Adam Brochert, MD-who scored in the 99th percentile on the Step 2 USMLE-and Theodore X. O'Connell, MD-author of several review and clinical reference books-present essential questions and answers covering the important concepts you need to know to score well on the USMLE Step 2 exam: key conditions you will be expected to recognize, all specialty and subspecialty topics, and necessary clinical concepts.Learn the most important questions and answers with the proven format of the highly acclaimed Secrets Series.Master all specialty and subspecialty topics covered on Step 2.Identify key facts and secrets using the Top 100 Secrets chapter.Review material quickly and easily thanks to bulleted lists, algorithms, and illustrations.Apply the pearls, tips, memory aids, and secrets from well-known and highly popular authors, Adam Brochert, MD and Theodore X. O'Connell, MD. Find information quickly with a second color highlighting chapter and section titles, legends, bullets and icons, and key terms.Consult the book wherever you go thanks to the portable size that fits in your lab coat pocket.

    In this powerful book, Debbie Nathan and Mike Snedeker examine the forces fueling this blind panic.

    From the beginnings of Genesis to the end of Revelation, this new study Bible is filled with informative articles and full-color photographs of places and objects that will open readers' eyes to the historical context of the stories and people of the Scripture.