New Books in Biology and Evolution

There are few areas of modern life that are burdened by as much information and advice, often contradictory, as our diet and health: eat a lot of meat, eat no meat; whole-grains are healthy, whole-grains are a disaster; eat everything in moderation; eat only certain foods--and on and on. In 100 Million Years of Food: What Our Ancestors Ate and Why It Matters Today (Picador, 2016), biological anthropologist Stephen Le explains how cuisines of different cultures are a result of centuries of evolution, finely tuned to our biology and surroundings. Today many cultures have strayed from their ancestral diets, relying instead on mass-produced food often made with chemicals that may be contributing to a rise in so-called "Western diseases," such as cancer, heart disease, and obesity.Travelling around the world to places as far-flung as Vietnam, Kenya, India, and the US, Stephen Le introduces us to people who are growing, cooking, and eating food using both traditional and modern methods, striving for a sustainable, healthy diet. In clear, compelling arguments based on scientific research, Le contends that our ancestral diets provide the best first line of defense in protecting our health and providing a balanced diet. Fast-food diets, as well as strict regimens like paleo or vegan, in effect highjack our biology and ignore the complex nature of our bodies. In 100 Million Years of Food Le takes us on a guided tour of evolution, demonstrating how our diets are the result of millions of years of history, and how we can return to a sustainable, healthier way of eating.Aven McMaster and Mark Sundaram are historians and the hosts of the excellent podcast The Endless Knot. Learn more about your ad choices. Visit megaphone.fm/adchoices

Helen Rozwadowski talks about the history of the oceans and how these oceans have shaped human history in profound ways. Rozwadowski is a professor of history at the University of Connecticut, Avery Point. She is the author of many books including Vast Expanses: A History of the Oceans (Reaktion Books, 2018).Much of human experience can be distilled to saltwater: tears, sweat, and an enduring connection to the sea. In Vast Expanses, Rozwadowski weaves a cultural, environmental, and geopolitical history of that relationship, a journey of tides and titanic forces reaching around the globe and across geological and evolutionary time.Michael F. Robinson is professor of history at Hillyer College, University of Hartford. He's the author of The Coldest Crucible: Arctic Exploration and American Culture (University of Chicago Press, 2006) and The Lost White Tribe: Scientists, Explorers, and the Theory that Changed a Continent (Oxford University Press, 2016). He's also the host of the podcast Time to Eat the Dogs, a weekly podcast about science, history, and exploration. Learn more about your ad choices. Visit megaphone.fm/adchoices

Why do zebras have stripes? One way to answer that question is ask what function stripes play in the lives of zebras – for example, to deter disease-carrying flies from biting them. This notion of a function plays a central role in biology: biologists frequently refer to the functions of many traits of evolved organisms. But not everything a trait causes is its function – the stripes might disorient some harmless birds, but that isn’t their function. So what determines the function of a trait? And what sort of explanations are offered when biologists claim that a trait has a particular function? In What Biological Functions Are and Why They Matter (Cambridge University Press, 2019), Justin Garson defends his generalized selected effects theory of what functions are and what they do. Garson, who is an associate professor of philosophy at Hunter College/CUNY, argues that functions can result from differential retention as well as differential replication in a population, and that to refer to a trait’s function is to provide a condensed causal explanation. This accessible introduction to debates regarding functions in the philosophy of biology also considers how the generalized selected effects theory contributes to contemporary debates in philosophy of psychiatry and philosophy of mind. Learn more about your ad choices. Visit megaphone.fm/adchoices

Erika Milam talks about the scientific search for human nature, a project that captured the attention of paleontologists, anthropologists, and primatologists in the years after World War II. Milam is a professor of history at Princeton University. She is the author of Creatures of Cain: The Hunt for Human Nature in Cold War America (Princeton University Press, 2019).After World War II, the question of how to define a universal human nature took on new urgency. Creatures of Cain charts the rise and precipitous fall in Cold War America of a theory that attributed man’s evolutionary success to his unique capacity for murder.Michael F. Robinson is professor of history at Hillyer College, University of Hartford. He's the author of The Coldest Crucible: Arctic Exploration and American Culture (University of Chicago Press, 2006) and The Lost White Tribe: Scientists, Explorers, and the Theory that Changed a Continent (Oxford University Press, 2016). He's also the host of the podcast Time to Eat the Dogs, a weekly podcast about science, history, and exploration. Learn more about your ad choices. Visit megaphone.fm/adchoices

Today's guest is David Sinclair, professor of genetics at Harvard Medical School and co-director of the Paul Glenn Center Biological Mechanisms of Aging. He is widely considered on the world's foremost experts on longevity research. A co-founder of the journal Aging and several biotech companies, he also hold 35 patents. Dr. Sinclair is a recipient of more than 25 awards and honors, including being knighted in the Order of Australia. His work is featured in five books, two documentary movies, “60 Minutes,” Morgan Freeman’s “Through the Wormhole,” and other media. His newest book, LifeSpan. Why We Age and Why We Don't Have To, was released in September 2019 by Simon and Schuster.Colin Miller and Dr. Keith Mankin host the popular medical podcast, PeerSpectrum. Colin works in the medical device space and Keith is a retired pediatric orthopedic surgeon. Learn more about your ad choices. Visit megaphone.fm/adchoices

Matthew James talks about the 1905 Galapagos Expedition organized by the California Academy of Sciences. James is a professor of geology at Sonoma State University. He is the author of Collecting Evolution: The Galapagos Expedition that Vindicated Darwin (Oxford University Press, 2017).In 1905, eight men from the California Academy of Sciences set sail from San Francisco for a scientific collection expedition in the Galapagos Islands, and by the time they were finished in 1906, they had completed one of the most important expeditions in the history of both evolutionary and conservation science. These scientists collected over 78,000 specimens during their time on the islands, validating the work of Charles Darwin and laying the groundwork for foundational evolution texts like Darwin's Finches. Despite its significance, almost nothing has been written on this voyage, lost amongst discussion of Darwin's trip on the Beagle and the writing of David Lack.Michael F. Robinson is professor of history at Hillyer College, University of Hartford. He's the author of The Coldest Crucible: Arctic Exploration and American Culture (University of Chicago Press, 2006) and The Lost White Tribe: Scientists, Explorers, and the Theory that Changed a Continent (Oxford University Press, 2016). He's also the host of the podcast Time to Eat the Dogs, a weekly podcast about science, history, and exploration. Learn more about your ad choices. Visit megaphone.fm/adchoices

Evolutionary biologists standardly treat organisms as agents: they have goals and purposes and preferences, and their behaviors and adaptive traits contribute to the achievement of their goals. This explanatory practice brings evolutionary biology into conceptual contact with rational choice theory, which provides models of how people make decisions and act on them. In Agents and Goals in Evolution (Oxford University Press, 2018), Samir Okasha explores the fascinating and complex links between evolutionary biology and rational choice theory, arguing that “agential thinking” in adaptationist explanations of nonhuman organisms is justified by providing explanatory purchase that goes beyond using the concept of function. He also argues how natural selection does not necessarily or even probably lead to the most adapted (or fittest) traits, and considers how and when the idea of utility maximization in economics has its valid analogue in the idea of adaptive fitness. Learn more about your ad choices. Visit megaphone.fm/adchoices

After the discoveries of dinosaur fossils in the American West in the late nineteenth century, the United States became world renown for vertebrate paleontology. In his new book Assembling the Dinosaur: Fossil Hunters, Tycoons, and the Making of a Spectacle(Harvard University Press, 2019), Lukas Rieppel explains how the discoveries projected American exceptionalism and, at the height of the Gilded Age, became symbols of industrial capitalism. As Andrew Carnegie and J.P. Morgan funded paleontology fieldwork and philanthropic museums, they bolstered their own reputations within the scientific community, and popularized creatures like the Tyrannosaurus and Triceratops. These American business magnates and tycoons soon counted on the eye-catching displays of ferocious dinosaurs, not to justify the cut-throat nature of capitalism in their own times, but to symbolize man’s progress and ascent from the depths of the prehistoric past.Ryan Driskell Tate is a Ph.D. candidate in American history at Rutgers University. He teaches courses on modern United States history, environmental history, and histories of labor and capitalism. He is completing a book on energy development in the American West. @rydriskelltate Learn more about your ad choices. Visit megaphone.fm/adchoices

Vanessa Heggie talks about the history of biomedical research in extreme environments. Heggie is a Fellow of the Institute for Global Innovation at the University of Birmingham. She is the author of Higher and Colder: A History of Extreme Physiology and Exploration(University of Chicago Press, 2019).During the long twentieth century, explorers went in unprecedented numbers to the hottest, coldest, and highest points on the globe. Taking us from the Himalaya to Antarctica and beyond, Higher and Colder presents the first history of extreme physiology, the study of the human body at its physical limits. Each chapter explores a seminal question in the history of science, while also showing how the apparently exotic locations and experiments contributed to broader political and social shifts in twentieth-century scientific thinking.Unlike most books on modern biomedicine, Higher and Colder focuses on fieldwork, expeditions, and exploration, and in doing so provides a welcome alternative to laboratory-dominated accounts of the history of modern life sciences. Though centered on male-dominated practices—science and exploration—it recovers the stories of women’s contributions that were sometimes accidentally, and sometimes deliberately, erased. Engaging and provocative, this book is a history of the scientists and physiologists who face challenges that are physically demanding, frequently dangerous, and sometimes fatal, in the interest of advancing modern science and pushing the boundaries of human ability.Michael F. Robinson is professor of history at Hillyer College, University of Hartford. He's the author of The Coldest Crucible: Arctic Exploration and American Culture (University of Chicago Press, 2006) and The Lost White Tribe: Scientists, Explorers, and the Theory that Changed a Continent (Oxford University Press, 2016). He's also the host of the podcast Time to Eat the Dogs, a weekly podcast about science, history, and exploration. Learn more about your ad choices. Visit megaphone.fm/adchoices

Personalized healthcare―or what the award-winning author Donna Dickenson calls "Me Medicine"―is radically transforming our longstanding "one-size-fits-all" model. Technologies such as direct-to-consumer genetic testing, pharmacogenetically developed therapies in cancer care, private umbilical cord blood banking, and neurocognitive enhancement claim to cater to an individual's specific biological character, and, in some cases, these technologies have shown powerful potential. Yet in others they have produced negligible or even negative results. Whatever is behind the rise of Me Medicine, it isn't just science. So why is Me Medicine rapidly edging out We Medicine, and how has our commitment to our collective health suffered as a result?In her cogent, provocative book Me Medicine vs. We Medicine: Reclaiming Biotechnology for the Common Good(Columbia University Press, 2016), Dickenson examines the economic and political factors fueling the Me Medicine phenomenon and explores how, over time, this paradigm shift in how we approach our health might damage our individual and collective well-being. Historically, the measures of "We Medicine," such as vaccination and investment in public-health infrastructure, have radically extended our life spans, and Dickenson argues we've lost sight of that truth in our enthusiasm for "Me Medicine."Dickenson explores how personalized medicine illustrates capitalism's protean capacity for creating new products and markets where none existed before―and how this, rather than scientific plausibility, goes a long way toward explaining private umbilical cord blood banks and retail genetics. Drawing on the latest findings from leading scientists, social scientists, and political analysts, she critically examines four possible hypotheses driving our Me Medicine moment: a growing sense of threat; a wave of patient narcissism; corporate interests driving new niche markets; and the dominance of personal choice as a cultural value. She concludes with insights from political theory that emphasize a conception of the commons and the steps we can take to restore its value to modern biotechnology. Learn more about your ad choices. Visit megaphone.fm/adchoices