Walk near woods or water on any spring or summer night and you will hear a bewildering (and sometimes deafening) chorus of frog, toad, and insect calls. How are these calls produced? What messages are encoded within the sounds, and how do their intended recipients receive and decode these signals? How does acoustic communication affect and reflect behavioral and evolutionary factors such as sexual selection and predator avoidance?

H. Carl Gerhardt and Franz Huber address these questions among many others, drawing on research from bioacoustics, behavior, neurobiology, and evolutionary biology to present the first integrated approach to the study of acoustic communication in insects and anurans. They highlight both the common solutions that these very different groups have evolved to shared challenges, such as small size, ectothermy (cold-bloodedness), and noisy environments, as well as the divergences that reflect the many differences in evolutionary history between the groups. Throughout the book Gerhardt and Huber also provide helpful suggestions for future research.

Adolescent Personality and Behavior was first published in 1963. Minnesota Archive Editions uses digital technology to make long-unavailable books once again accessible, and are published unaltered from the original University of Minnesota Press editions.What kinds of boys and girls are likely to become delinquent? Can they be identified before they get into trouble so that steps may be taken to prevent their delinquency (if prevention is possible)? What about school “dropouts” – are they distinguishable from other youngsters before they leave school? What are the characteristics of a normal adolescent? Questions like these, far-reaching, complex, and profoundly important in the face of increasing concern about the problems of adolescence, are dealt with in the comprehensive study reported in this book.Professors Hathaway and Monachesi have studied the personality and behavior of approximately 15,000 young people in an effort to determine whether it is possible to predict subsequent development of desirable or undesirable behavior. The subjects of the study were ninth-grade youngsters, at the outset, and their later careers were followed for a period of four to six years. The Minnesota Multiphasic Personality Inventory, a psychometric test, was administered to the boys and girls when they were in the ninth grade. The MMPI findings are correlated with a wealth of other data – personality evaluations by teachers and others, police records, family socioeconomic status, school achievement, type of residence community, and other factors – to provide a large-scale picture of adolescent personality and behavior. Details of the study – its plan and execution – are given, along with a general description of the MMPI, its use, and interpretation.

In 1972, a young graduate student named Shirley Strum traveled to Kenya to study a troop of olive baboons (Papio anubis) nicknamed the Pumphouse Gang. Like our own ancestors, baboons had adapted to life on the African savannah, and Strum hoped that by observing baboon behavior, she could learn something about how early humans might have lived. Soon the baboons had won her heart as well as her mind, and Strum has been working with them ever since.

Vividly written and filled with fascinating insights, Almost Human chronicles the first fifteen years of Strum's fieldwork with the Pumphouse Gang. From the first paragraph, the reader is drawn along with Strum into the world of the baboons, learning about the tragedies and triumphs of their daily lives—and the lives of the scientists studying them. This edition includes a new introduction and epilogue that place Strum's research in the context of the current global conservation crisis and tell us what has happened to the Pumphouse Gang since the book was first published.

Elephants have fascinated humans for millennia. Aristotle wrote of them with awe; Hannibal used them in warfare; and John Donne called the elephant “Nature’s greatest masterpiece. . . . The only harmless great thing.” Their ivory has been sought after and treasured in most cultures, and they have delighted zoo and circus audiences worldwide for centuries. But it wasn’t until the second half of the twentieth century that people started to take an interest in elephants in the wild, and some of the most important studies of these intelligent giants have been conducted at Amboseli National Park in Kenya.

            
The Amboseli Elephants is the long-awaited summation of what’s been learned from the Amboseli Elephant Research Project (AERP)—the longest continuously running elephant research project in the world. Cynthia J. Moss and Harvey Croze, the founders of the AERP, and Phyllis C. Lee, who has been closely involved with the project since 1982, compile more than three decades of uninterrupted study of over 2,500 individual elephants, from newborn calves to adult bulls to old matriarchs in their 60s. Chapters explore such topics as elephant ecosystems, genetics, communication, social behavior, and reproduction, as well as exciting new developments from the study of elephant minds and cognition. The book closes with a view to the future, making important arguments for the ethical treatment of elephants and suggestions to aid in their conservation.

            
The most comprehensive account of elephants in their natural environment to date, The Amboseli Elephants will be an invaluable resource for scientists, conservationists, and anyone interested in the lives and loves of these extraordinary creatures.        

Pronghorn antelope are the fastest runners in North America, clocked at speeds of up to 100 kilometers per hour. Yet none of their current predators can come close to running this fast. Pronghorn also gather in groups, a behavior commonly viewed as a "safety in numbers" defense. But again, none of their living predators are fearsome enough to merit such a response.

In this elegantly written book, John A. Byers argues that these mystifying behaviors evolved in response to the dangerous predators with whom pronghorn shared their grassland home for nearly four million years: among them fleet hyenas, lions, and cheetahs. Although these predators died out ten thousand years ago, pronghorn still behave as if they were present—as if they were living with the ghosts of predators past.

Byers's provocative hypothesis will stimulate behavioral ecologists and mammalogists to consider whether other species' adaptations are also haunted by selective pressures from predators past. The book will also find a ready audience among evolutionary biologists and paleontologists.

The year he graduated from college, 22-year-old Noah Strycker was dropped by helicopter in a remote Antarctic field camp with two bird scientists and a three months’ supply of frozen food. His subjects: more than a quarter million penguins.

Compact, industrious, and approachable, the Adélie Penguins who call Antarctica home visit their breeding grounds each Antarctic summer to nest and rear their young before returning to sea. Because of long-term studies, scientists may know more about how these penguins will adjust to climate change than about any other creature in the world.

Bird scientists like Noah are less well known. Like the intrepid early explorers of Antarctica, modern scientists drawn to the frozen continent face an utterly inhospitable landscape, one that inspires, isolates, and punishes.

With wit, curiosity, and a deep knowledge of his subject, Strycker recounts the reality of life at the end of the Earth—thousand-year-old penguin mummies, hurricane-force blizzards, and day-to-day existence in below freezing temperatures—and delves deep into a world of science, obsession, and birds.

Among Penguins weaves a captivating tale of penguins and their researchers on the coldest, driest, highest, and windiest continent on Earth. Birders, lovers of the Antarctic, and fans of first-person adventure narratives will be fascinated by Strycker’s book.

Ask anyone who has owned a pet and they’ll assure you that, yes, animals have personalities. And science is beginning to agree. Researchers have demonstrated that both domesticated and nondomesticated animals—from invertebrates to monkeys and apes—behave in consistently different ways, meeting the criteria for what many define as personality. But why the differences, and how are personalities shaped by genes and environment? How did they evolve? The essays in Animal Personalities reveal that there is much to learn from our furred and feathered friends.

           

The study of animal personality is one of the fastest-growing areas of research in behavioral and evolutionary biology. Here Claudio Carere and Dario Maestripieri, along with a host of scholars from fields as diverse as ecology, genetics, endocrinology, neuroscience, and psychology, provide a comprehensive overview of the current research on animal personality. Grouped into thematic sections, chapters approach the topic with empirical and theoretical material and show that to fully understand why personality exists, we must consider the evolutionary processes that give rise to personality, the ecological correlates of personality differences, and the physiological mechanisms underlying personality variation.