"Extraordinary. . . . Berger is a hero of biology who deserves the highest honors that science can bestow."—Tim Flannery, New York Review of Books

On the Tibetan Plateau, there are wild yaks with blood cells thinner than those of horses’ by half, enabling the endangered yaks to survive at 40 below zero and in the lowest oxygen levels of the mountaintops. But climate change is causing the snow patterns here to shift, and with the snows, the entire ecosystem. Food and water are vaporizing in this warming environment, and these beasts of ice and thin air are extraordinarily ill-equipped for the change. A journey into some of the most forbidding landscapes on earth, Joel Berger’s Extreme Conservation is an eye-opening, steely look at what it takes for animals like these to live at the edges of existence. But more than this, it is a revealing exploration of how climate change and people are affecting even the most far-flung niches of our planet.

Berger’s quest to understand these creatures’ struggles takes him to some of the most remote corners and peaks of the globe: across Arctic tundra and the frozen Chukchi Sea to study muskoxen, into the Bhutanese Himalayas to follow the rarely sighted takin, and through the Gobi Desert to track the proboscis-swinging saiga. Known as much for his rigorous, scientific methods of developing solutions to conservation challenges as for his penchant for donning moose and polar bear costumes to understand the mindsets of his subjects more closely, Berger is a guide par excellence. He is a scientist and storyteller who has made his life working with desert nomads, in zones that typically require Sherpas and oxygen canisters. Recounting animals as charismatic as their landscapes are extreme, Berger’s unforgettable tale carries us with humor and expertise to the ends of the earth and back. But as his adventures show, the more adapted a species has become to its particular ecological niche, the more devastating climate change can be. Life at the extremes is more challenging than ever, and the need for action, for solutions, has never been greater.

Along with reproduction, balancing energy expenditure with the limits of resource acquisition is essential for both a species and a population to survive. But energy is a limited resource, as we know well, so birds and mammals—the most energy-intensive fauna on the planet—must reduce energy expenditures to maintain this balance, some taking small steps, and others extreme measures.

Here Brian K. McNab draws on his over sixty years in the field to provide a comprehensive account of the energetics of birds and mammals, one fully integrated with their natural history. McNab begins with an overview of thermal rates—much of our own energy is spent maintaining our 98.6?F temperature—and explains how the basal rate of metabolism drives energy use, especially in extreme environments. He then explores those variables that interact with the basal rate of metabolism, like body size and scale and environments, highlighting their influence on behavior, distribution, and even reproductive output. Successive chapters take up energy and population dynamics and evolution. A critical central theme that runs through the book is how the energetic needs of birds and mammals come up against rapid environmental change and how this is hastening the pace of extinction.

Some years ago, David Freedberg opened a dusty cupboard at Windsor Castle and discovered hundreds of vividly colored, masterfully precise drawings of all sorts of plants and animals from the Old and New Worlds. Coming upon thousands more drawings like them across Europe, Freedberg finally traced them all back to a little-known scientific organization from seventeenth-century Italy called the Academy of Linceans (or Lynxes).

Founded by Prince Federico Cesi in 1603, the Linceans took as their task nothing less than the documentation and classification of all of nature in pictorial form. In this first book-length study of the Linceans to appear in English, Freedberg focuses especially on their unprecedented use of drawings based on microscopic observation and other new techniques of visualization. Where previous thinkers had classified objects based mainly on similarities of external appearance, the Linceans instead turned increasingly to sectioning, dissection, and observation of internal structures. They applied their new research techniques to an incredible variety of subjects, from the objects in the heavens studied by their most famous (and infamous) member Galileo Galilei—whom they supported at the most critical moments of his career—to the flora and fauna of Mexico, bees, fossils, and the reproduction of plants and fungi. But by demonstrating the inadequacy of surface structures for ordering the world, the Linceans unwittingly planted the seeds for the demise of their own favorite method—visual description-as a mode of scientific classification.

Profusely illustrated and engagingly written, Eye of the Lynx uncovers a crucial episode in the development of visual representation and natural history. And perhaps as important, it offers readers a dazzling array of early modern drawings, from magnificently depicted birds and flowers to frogs in amber, monstrously misshapen citrus fruits, and more.