This volume, aimed at the general reader, presents life and times of the amazing animals that inhabited Earth more than 500 million years ago. The Cambrian Period was a critical time in Earth's history. During this immense span of time nearly every modern group of animals appeared. Although life had been around for more than 2 million millennia, Cambrian rocks preserve the record of the first appearance of complex animals with eyes, protective skeletons, antennae, and complex ecologies. Grazing, predation, and multi-tiered ecosystems with animals living in, on, or above the sea floor became common. The cascade of interaction led to an ever-increasing diversification of animal body types. By the end of the period, the ancestors of sponges, corals, jellyfish, worms, mollusks, brachiopods, arthropods, echinoderms, and vertebrates were all in place. The evidence of this Cambrian "explosion" is preserved in rocks all over the world, including North America, where the seemingly strange animals of the period are preserved in exquisite detail in deposits such as the Burgess Shale in British Columbia. Cambrian Ocean World tells the story of what is, for us, the most important period in our planet's long history.

“A refreshing collection of superb mathematical essays . . . from choosing up sides to choosing names, the topics are intriguingly nonstandard . . . First-rate.” —John Allen Paulos, author of InnumeracyA science and technology journalist and essayist whose work has appeared in multiple anthologies, Brian Hayes now presents a selection of his most memorable pieces—including the National Magazine Award–winning “Clock of Ages”—in this enjoyable volume. In addition, Hayes embellishes the collection with an overall scene-setting preface, reconfigured illustrations, and a refreshingly self-critical “Afterthoughts” section appended to each essay.“You don’t have to be a geek to appreciate Hayes’s lively, self-effacing style . . . The first essay explains how clockmakers developed the gears and linkages that enabled fabled medieval clocks to reach remarkable accuracy, as well as predict the day Easter would fall on. Other essays celebrate the notion of random numbers and why they are so hard to achieve. Numerical analysis also plays a role in economic models based on the kinetic theory of gases or simplified markets involving iterations of buying and selling. Hayes goes on to explain how statistics have been applied to compute which quarrels—from interpersonal to world wars—are the deadliest (surprising results here) . . . Challenging but rewarding for anyone intrigued by numbers.” —Kirkus Reviews“As much as any book I can name, Group Theory in the Bedroom conveys to a general audience the playfulness involved in doing mathematics: how questions arise as a form of play, how our first attempts at answering questions usually seem naive in hindsight but are crucial for finding eventual solutions, and how a good solution just feels right.” —David Austin, Notices of the AMS

From Tyrannosaurus rex to Heteropoda davidbowie: scientific naming as a joyful and creative act.Tyrannosaurus rex. Homo sapiens. Heteropoda davidbowie. Behind each act of scientific naming is a story. In this entertaining and illuminating book, Michael Ohl considers scientific naming as a joyful and creative act. There are about 1.8 million discovered and named plant and animal species, and millions more still to be discovered. Naming is the necessary next step after discovery; it is through the naming of species that we perceive and understand nature. Ohl explains the process, with examples, anecdotes, and a wildly varied cast of characters. He describes the rules for scientific naming; the vernacular isn't adequate. These rules—in standard binomial nomenclature, the generic name followed by specific name—go back to Linnaeus; but they are open to idiosyncrasy and individual expression. A lizard is designated Barbaturex morrisoni (in honor of the Doors' Jim Morrison, the Lizard King); a member of the horsefly family Scaptia beyonceae. Ohl, a specialist in “winged things that sting,” confesses that among the many wasp species he has named is Ampulex dementor, after the dementors in the Harry Potter novels. Scientific names have also been deployed by scientists to insult other scientists, to make political statements, and as expressions of romantic love: “I shall name this beetle after my beloved wife.” The Art of Naming takes us on a surprising and fascinating journey, in the footsteps of the discoverers of species and the authors of names, into the nooks and crannies and drawers and cabinets of museums, and through the natural world of named and not-yet-named species.

A Top 10 Science Book of Fall 2015 - Publishers WeeklyA star science journalist with Parkinson's reveals the inner workings of this perplexing disease Seven million people worldwide suffer from Parkinson's, and doctors, researchers, and patients continue to hunt for a cure. In Brain Storms, the award-winning journalist Jon Palfreman tells their story, a story that became his own when he was diagnosed with the debilitating illness. Palfreman chronicles how scientists have worked to crack the mystery of what was once called the shaking palsy, from the earliest clinical descriptions of tremors, gait freezing, and micrographia to the cutting edge of neuroscience, and charts the victories and setbacks of a massive international effort to best the disease. He takes us back to the late 1950s and the discovery of L-dopa. He delves into a number of other therapeutic approaches to this perplexing condition, from partial lobotomies and deep brain stimulation to neural grafting. And he shares inspiring stories of brave individuals living with Parkinson's, from a former professional ballet dancer who tricks her body to move freely again to a patient who cannot walk but astounds doctors when he is able to ride a bicycle with no trouble at all. With the baby boom generation beginning to retire and the population steadily aging, the race is on to discover a means to stop or reverse neurodegenerative conditions like Parkinson's and Alzheimer's. Brain Storms is the long-overdue, riveting, and deeply personal story of that race, and a passionate, insightful, and urgent look into the lives of those affected.

A vivid account of a major shift in how we understand Earth, from an exceptionally talented new voice. Earth is not simply an inanimate planet on which life evolved, but rather a planet that came to life.“Glorious . . . full of achingly beautiful passages, mind-bending conceptual twists, and wonderful characters. Jabr reveals how Earth has been profoundly, miraculously shaped by life.”—Ed Yong, Pulitzer Prize winner and bestselling author of An Immense WorldOne of humanity’s oldest beliefs is that our world is alive. Though once ridiculed by some scientists, the idea of Earth as a vast interconnected living system has gained acceptance in recent decades. We, and all living things, are more than inhabitants of Earth—we are Earth, an outgrowth of its structure and an engine of its evolution. Life and its environment have coevolved for billions of years, transforming a lump of orbiting rock into a cosmic oasis—a planet that breathes, metabolizes, and regulates its climate.Acclaimed science writer Ferris Jabr reveals a radical new vision of Earth where lush forests spew water, pollen, and bacteria to summon rain; giant animals engineer the very landscapes they roam; microbes chew rock to shape continents; and microscopic plankton, some as glittering as carved jewels, remake the air and sea.Humans are one of the most extreme examples of life transforming Earth. Through fossil fuel consumption, agriculture, and pollution, we have altered more layers of the planet in less time than any other species, pushing Earth into a crisis. But we are also uniquely able to understand and protect the planet’s wondrous ecology and self-stabilizing processes. Jabr introduces us to a diverse cast of fascinating people who have devoted themselves to this vital work.Becoming Earth isan exhilarating journey through the hidden workings of our planetary symphony—its players, its instruments, and the music of life that emerges—and an invitation to reexamine our place in it. How well we play our part will determine what kind of Earth our descendants inherit for millennia to come.

A groundbreaking popular psychology book that explores the deep connection between our body and our brain.Over decades of study, University of Virginia psychologist Dennis Proffitt has shown that we are each living our own personal version of Gulliver’s Travels, where the size and shape of the things we see are scaled to the size of our bodies, and our ability to interact with them. Stairs look less steep as dieters lose weight, baseballs grow bigger the better players hit, hills look less daunting if you’re standing next to a close friend, and learning happens faster when you can talk with your hands.Written with journalist Drake Baer, Perception marries academic rigor with mainstream accessibility. The research presented and the personalities profiled will show what it means to not only have, but be, your unique human body. The positive ramifications of viewing ourselves from this embodied perspective include greater athletic, academic, and professional achievement, more nourishing relationships, and greater personal well-being. The better we can understand what our bodies are—what they excel at, what they need, what they must avoid—the better we can live our lives.