In college, I ran against Kenyans, and wondered whether endurance genes might have traveled with them from East Africa. At the same time, I began to notice that a training group on my team could consist of five men who run next to one another, stride for stride, day after day, and nonetheless turn out five entirely different runners. How could this be?We all knew a star athlete in high school. The one who made it look so easy. He was the starting quarterback and shortstop; she was the all-state point guard and high-jumper. Naturals. Or were they?The debate is as old as physical competition. Are stars like Usain Bolt, Michael Phelps, and Serena Williams genetic freaks put on Earth to dominate their respective sports? Or are they simply normal people who overcame their biological limits through sheer force of will and obsessive training?The truth is far messier than a simple dichotomy between nature and nurture. In the decade since the sequencing of the human genome, researchers have slowly begun to uncover how the relationship between biological endowments and a competitor’s training environment affects athleticism. Sports scientists have gradually entered the era of modern genetic research.In this controversial and engaging exploration of athletic success, Sports Illustrated senior writer David Epstein tackles the great nature vs. nurture debate and traces how far science has come in solving this great riddle. He investigates the so-called 10,000-hour rule to uncover whether rigorous and consistent practice from a young age is the only route to athletic excellence.Along the way, Epstein dispels many of our perceptions about why top athletes excel. He shows why some skills that we assume are innate, like the bullet-fast reactions of a baseball or cricket batter, are not, and why other characteristics that we assume are entirely voluntary, like an athlete’s will to train, might in fact have important genetic components.This subject necessarily involves digging deep into sensitive topics like race and gender. Epstein explores controversial questions such as:Are black athletes genetically predetermined to dominate both sprinting and distance running, and are their abilities influenced by Africa’s geography?Are there genetic reasons to separate male and female athletes in competition?Should we test the genes of young children to determine if they are destined for stardom?Can genetic testing determine who is at risk of injury, brain damage, or even death on the field?Through on-the-ground reporting from below the equator and above the Arctic Circle, revealing conversations with leading scientists and Olympic champions, and interviews with athletes who have rare genetic mutations or physical traits, Epstein forces us to rethink the very nature of athleticism.

    Using his own research and experiences throughout the world, Lieberman recounts without jargon how and why humans evolved to walk, run, dig, and do other necessary and rewarding physical activities while avoiding needless exertion.Exercised is entertaining and enlightening but also constructive. As our increasingly sedentary lifestyles have contributed to skyrocketing rates of obesity and diseases such as diabetes, Lieberman audaciously argues that to become more active we need to do more than medicalize and commodify exercise.Drawing on insights from evolutionary biology and anthropology, Lieberman suggests how we can make exercise more enjoyable, rather than shaming and blaming people for avoiding it. He also tackles the question of whether you can exercise too much, even as he explains why exercise can reduce our vulnerability to the diseases mostly likely to make us sick and kill us.

    Written specifically for the general reader, and for entry-level students, it covers all the most important elements of this interdisciplinary subject, from the role of evolution in our selection of partner, to the influence of genetics on parenting. The book draws widely on examples, case studies and background facts to convey a substantial amount of information, and is authored by the UK’s leading experts in the field, from the only dedicated research and teaching institute.

    Melting & boiling points, Density, Electronegativity, Electron affinity, and much more in the Full version. Navigate from TOC or search for words or phrases. Features Formatted for a small screen Atomic numbers, symbols & weights Chemical symbols and more... Easy to navigate. Search for the words or phrases Navigate from Table of Contents or read page by page Access the guide anytime, anywhere - at home, on the train, in the subway. Use your down time to prepare for an exam. Always have the guide available for a quick reference. Table of Contents Periodic Table: Standard | LargeList of elements sorted by: Atomic number (including atomic Mass) | Name | Symbol | Boiling Point | Melting Point | Density | Atomic radius | Electronegativity | Electron affinity | Ionization potential | Standard enthalpy change of vaporization | Standard enthalpy change of fusion | Specific heat capacity About Periodic Table: Arrangement | Periodicity of chemical properties | Electron configuration | Naming of elements | Chemical symbols | HistoryChemical Series: Alkali metal | Alkaline earth metal | Lanthanides | Actinides | Transition metals | Poor metals | Metalloids | Nonmetals | Halogens | Noble gasesAppendix: IUPAC nomenclature | Metric system (SI) | SI writing style | Powers of 10 prefixes | United States units conversion

    has been involved in some of the most sensational cases of our time. Now Grave Secrets takes you on a personal tour behind the scenes of these notorious incidents-touching on cases as varied as O.J. Simpson, Vincent Foster, and even the much-publicized "Alien Autopsy." Through shocking eyewitness testimony and crucial findings of facts, Cyril Wecht's expert opinion is sure to enlighten and fascinate true crime fans everywhere! � Newly updated for paperback! br� GRAVE SECRETS provides controversial and stunning revelations, such as: br� Evidence pointing to a second killer in the O.J. Simpson murder case br� Whether or not White House counselVincent Foster really committed suicide br� Why the secrets surrounding the "Alien Autopsy" continue to elude the public br� Cyril Wecht has provided expert commentary on "20/20," "Nightline," "The Larry King Show," and news specials with Dan Rather, Geraldo Rivera, Tom Snyder, and Maury Povich br� Cyril Wecht is the former president of both the American Academy of Forensic Science and the American College of Legal Medicine br� Contains 8 pages of compelling photos

    Tedford have spent the past 20 years studying the evolutionary history of the family Canidae. Both are well known for having established the modern framework for the evolutionary relationship of canids. Combining their research with Mauricio Ant�n's impeccable reconstructions of both extinct and extant species, Wang and Tedford present a remarkably detailed and nuanced portrait of the origin and evolution of canids over the past 40 million years.The authors cull their history from the most recent scientific research conducted on the vast collections of the American Museum of Natural History and other leading institutions. The fossil record of the Canidae, particularly those from their birth place in North America, are the strongest of their kind among known groups of carnivorans. Such a wonderfully detailed evolutionary history provides access to a natural history that is not possible with many other groups of carnivorans.With their rich fossil record, diverse adaptations to various environments, and different predatory specializations, canids are an ideal model organism for the mapping of predator behavior and morphological specializations. They also offer an excellent contrast to felids, which remain entrenched in extreme predatory specializations. The innovative illustrated approach in this book is the perfect accompaniment to an extremely important branch of animal and fossil study. It transforms the science of paleontology into a thrilling visual experience and provides an unprecedented reference for anyone fascinated by dogs.

    She reveals them to be curious, clever connoisseurs of their world, technologically inventive and ecologically adaptable. Above all, they were successful survivors for more than 300,000 years, during times of massive climatic upheaval.At a time when our species has never faced greater threats, we’re obsessed with what makes us special. But, much of what defines us was also in Neanderthals, and their DNA is still inside us. Planning, co-operation, altruism, craftsmanship, aesthetic sense, imagination... perhaps even a desire for transcendence beyond mortality.It is only by understanding them, that we can truly understand ourselves.