Why is there no metric system in the United States? Why is it that a country known for its openness to the future, its scientific innovations, and its preference for practicality has not adopted the most practical, scientific, and innovative system of measurement? Yardstick Nation answers these questions by analyzing the political, economic, and international factors that determined the trajectory of the United States as a nation self-excluded from one of the most successful global technical languages.

Using a historical-comparative approach and qualitative analysis of archival material, the book examines the trajectories of American scientists, engineers, politicians, and industrialists from 1787 to 1982, to detail what they wanted to attain and to explain what was actually possible to achieve given the political and economic conditions in which they lived. Yardstick Nation argues that in order to understand the unbreached distance between the United States and the metric system, we must consider the interaction between three structural elements: historical timing, state infrastructural power, and international economic integration.

Author Hector Vera’s systematic look at when and why countries have adopted the metric system shows that its introduction is never casual. In the countries that voluntarily embraced the metric system, this was the result of either deep internal political transformations or momentous changes in the international economy. When the adoption of the metric system is politically driven, it comes as the result of a social revolution, independence war, national unification, or the draft of a new constitution. When it is propelled by economic factors, metrication is part of the efforts of economically stagnant countries to integrate into international markets.

In 2020, it will have been twenty-five years since one of the greatest wildlife conservation and restoration achievements of the twentieth century took place: the reintroduction of wolves to the world’s first national park, Yellowstone. Eradicated after the park was established, then absent for seventy years, these iconic carnivores returned to Yellowstone in 1995 when the US government reversed its century-old policy of extermination and—despite some political and cultural opposition—began the reintroduction of forty-one wild wolves from Canada and northwest Montana. In the intervening decades, scientists have studied their myriad behaviors, from predation to mating to wolf pup play, building a one-of-a-kind field study that has both allowed us to witness how the arrival of top predators can change an entire ecosystem and provided a critical window into impacts on prey, pack composition, and much else.
 
Here, for the first time in a single book, is the incredible story of the wolves’ return to Yellowstone National Park as told by the very people responsible for their reintroduction, study, and management. Anchored in what we have learned from Yellowstone, highlighting the unique blend of research techniques that have given us this knowledge, and addressing the major issues that wolves still face today, this book is as wide-ranging and awe-inspiring as the Yellowstone restoration effort itself. We learn about individual wolves, population dynamics, wolf-prey relationships, genetics, disease, management and policy, newly studied behaviors and interactions with other species, and the rippling ecosystem effects wolves have had on Yellowstone’s wild and rare landscape. Perhaps most importantly of all, the book also offers solutions to ongoing controversies and debates.
 
Featuring a foreword by Jane Goodall, beautiful images, a companion online documentary by celebrated filmmaker Bob Landis, and contributions from more than seventy wolf and wildlife conservation luminaries from Yellowstone and around the world, Yellowstone Wolves is a gripping, accessible celebration of the extraordinary Yellowstone Wolf Project—and of the park through which these majestic and important creatures once again roam.

The world's first national park, Yellowstone is a symbol of nature's enduring majesty and the paradigm of protected areas across the globe. But Yellowstone is constantly changing. How we understand and respond to events that are putting species under stress, say the authors of Yellowstone's Wildlife in Transition, will determine the future of ecosystems that were millions of years in the making. With a foreword by the renowned naturalist E. O. Wilson, this is the most comprehensive survey of research on North America's flagship national park available today.

Marshaling the expertise of over thirty contributors, Yellowstone's Wildlife in Transition examines the diverse changes to the park's ecology in recent decades. Since its creation in the 1870s, the priorities governing Yellowstone have evolved, from intensive management designed to protect and propagate depleted large-bodied mammals to an approach focused on restoration and preservation of ecological processes. Recognizing the importance of natural occurrences such as fires and predation, this more ecologically informed oversight has achieved notable successes, including the recovery of threatened native species of wolves, bald eagles, and grizzly bears.

Nevertheless, these experts detect worrying signs of a system under strain. They identify three overriding stressors: invasive species, private-sector development of unprotected lands, and a warming climate. Their concluding recommendations will shape the twenty-first-century discussion over how to confront these challenges, not only in American parks but for conservation areas worldwide. Highly readable and fully illustrated, Yellowstone's Wildlife in Transition will be welcomed by ecologists and nature enthusiasts alike.