Evolutionary Developmental Biology, Volume 141 focuses on recent research in evolutionary developmental biology, the science studying how changes in development cause the variations that natural selection operate on. Several new hypotheses and models are presented in this volume, and these concern how homology may be properly delineated, how neural crest and placode cells emerged and how they formed the skull and jaw, and how plasticity and developmental symbiosis enable normal development to be regulated by environmental factors.

Antitrust economics is a field that draws extensively on the economic theory of industrial organization, and the field's frontier is at the cutting edge of economic research. This book bridges the gap between introductory texts and advanced research volumes by presenting select themes in antitrust economics and modeling. All from a neoclassical perspective, the author begins by discussing classic monopoly, continues to add more markets to the mix-via spillover effects and horizontal/vertical mergers-and then explores logical ties to international trade and regulated industries. While brief and selective, the method provides a basic analytical reference point for approaching special antitrust topics not covered here, such as tying, bundling, and exclusive dealing. Such analytics are sometimes likened to a rational defense of monopoly and related anti-competitive behavior, but are essential to explicating antitrust economics from a mainstream Western economic vantage.

This classic text takes a balanced and modern approach, presenting the exciting developments in the field, and making the most complex topics understandable to a new generation of students. Developmental Biology, Thirteenth Edition, accommodates the needs of both beginners and advanced students by clearly distinguishing the main subject matter from the details needed by advanced students. An enhanced eBook contains videos, interviews, tutorials, and interactive features. This market-leading text embodies the breadth, intellectual rigor, and wonder of contemporary developmental biology.

How does one make a decision today about in vitro fertilization, abortion, egg freezing, surrogacy, and other matters of reproduction? This book provides the intellectual and emotional intelligence to help individuals make informed choices amid misinformation and competing claims. Scott Gilbert and Clara Pinto-Correia, renowned scientists and communicators, speak to the couple trying to become pregnant, the woman contemplating an abortion, and the student searching for sound information about human sex and reproduction. Their book is an enlightening read for men as well as for women, describing in clear terms how babies come into existence through both natural and assisted reproductive pathways. The book first covers the most recent and well-grounded scientific conclusions about fertilization and early human embryology. It then discusses the reasons why some of the major forms of assisted reproductive technologies were invented, how they are used, and what they can and cannot accomplish. Most important, the authors explore the emotional side of using these technologies to become pregnant, focusing on those who have emptied their emotions and bank accounts in a valiant effort to get pregnant. This work of science and human biology is informed by a moral concern for our common humanity.