Can a parrot understand complex concepts and mean what it says? Since the early 1900s, most studies on animal-human communication have focused on great apes and a few cetacean species. Birds were rarely used in similar studies on the grounds that they were merely talented mimics--that they were, after all, "birdbrains." Experiments performed primarily on pigeons in Skinner boxes demonstrated capacities inferior to those of mammals; these results were thought to reflect the capacities of all birds, despite evidence suggesting that species such as jays, crows, and parrots might be capable of more impressive cognitive feats.

Twenty years ago Irene Pepperberg set out to discover whether the results of the pigeon studies necessarily meant that other birds--particularly the large-brained, highly social parrots--were incapable of mastering complex cognitive concepts and the rudiments of referential speech. Her investigation and the bird at its center--a male Grey parrot named Alex--have since become almost as well known as their primate equivalents and no less a subject of fierce debate in the field of animal cognition. This book represents the long-awaited synthesis of the studies constituting one of the landmark experiments in modern comparative psychology.

In this book, W. John Smith enlarges ethology's perspective on communication and takes it in new directions. Traditionally, ethological analysis has focused on the motivational states of displaying animals: What makes the bird sing, the cat lash its tail, the bee dance? The Behavior of Communicating emphasizes messages. It seeks to answer questions about the information shared by animals through their displays: What information is made available to a bird by its neighbor's song, to a cat by its opponent's gesture, to a bee by its hivemate's dancing? What information is extracted from sources contextual to these displays? How are the responses to displays adaptive for recipients and senders? What evolutionary processes and constraints underlie observed patterns of animal communication?

Smith's approach is deeply rooted in the ethological tradition of naturalistic observations. Detailed analysis of observed displays and display repertoires illuminates the theoretical discussion that forms the core of the book. A taxonomy and interpretative analysis of messages made available through formalized display behavior are also developed. Smith shows that virtually all subhuman animal displays may be interpreted as transmitting messages about the communicator--not the environment--and, more specifically, that messages indicate the kinds of behavior the displaying animal may choose to perform. The most widespread behavioral messages are surprisingly general, even banal, in character; yet they make public information that is not readily available from other sources and that would otherwise be essentially private to the communicator. Taken along with information from sources contextual to the displays, the messages made available may permit responses that are markedly specific. By taking advantage of contextual specificity, a species expands the capacity of its display behavior to be functional in numerous and diverse circumstances.

After developing the concept of messages and discussing their forms, the responses made to them, and the functions engendered, Smith turns to the evolution of display behavior--the ways in which acts become specialized for communication and the nature of the evolutionary constraints affecting the ultimate forms of displays. He revises the traditional ethological concept of displays, and in a final chapter develops the further concept of formalized interactions. Here he extends the discussion to formal patterns of behavior that, unlike displays, are beyond the capabilities of individual performers. Human nonverbal communication, which is considered from time to time throughout the book, provides the richest examples of communication flexibly structured at this level of complexity.

This book explores the strikingly similar ways in which information is encoded in nonverbal man-made signals (e.g., traffic lights and tornado sirens) and animal-evolved signals (e.g., color patterns and vocalizations). The book also considers some coding principles for reducing certain unwanted redundancies and explains how desirable redundancies enhance communication reliability.

Jack Hailman believes this work pioneers several aspects of analyzing human and animal communication. The book is the first to survey man-made signals as a class. It is also the first to compare such human-devised systems with signaling in animals by showing the highly similar ways in which the two encode information. A third innovation is generalizing principles of quantitative information theory to apply to a broad range of signaling systems. Finally, another first is distinguishing among types of redundancy and their separation into unwanted and desirable categories.

This remarkably novel book will be of interest to a wide readership. Appealing not only to specialists in semiotics, animal behavior, psychology, and allied fields but also to general readers, it serves as an introduction to animal signaling and to an important class of human communication.

Mother and infant negotiate over food; two high-status males jockey for power; female kin band together to get their way. It happens among humans and it happens among our closest living relatives in the animal kingdom, the great apes of Africa. In this eye-opening book, we see precisely how such events unfold in chimpanzees, bonobos, and gorillas: through a spontaneous, mutually choreographed dance of actions, gestures, and vocalizations in which social partners create meaning and come to understand each other.

Using dynamic systems theory, an approach employed to study human communication, Barbara King is able to demonstrate the genuine complexity of apes' social communication, and the extent to which their interactions generate meaning. As King describes, apes create meaning primarily through their body movements--and go well beyond conveying messages about food, mating, or predators. Readers come to know the captive apes she has observed, and others across Africa as well, and to understand "the process of creating social meaning."

This new perspective not only acquaints us with our closest living relatives, but informs us about a possible pathway for the evolution of language in our own species. King's theory challenges the popular idea that human language is instinctive, with rules and abilities hardwired into our brains. Rather, The Dynamic Dance suggests, language has its roots in the gestural "building up of meaning" that was present in the ancestor we shared with the great apes, and that we continue to practice to this day.

From a leading researcher on dolphin communication, a deep dive into the many ways animal species communicate with their kin, their neighboring species, and us. 
 
If you could pose one question to a dolphin, what would it be? And what might a dolphin ask you? For forty years, researcher and author Denise L. Herzing has investigated these and related questions of marine mammal communication. With the assistance of a friendly community of Atlantic spotted dolphins in the Bahamas, Herzing studies two-way communication between different dolphin species and between humans and dolphins using a variety of cutting-edge experiments. But the dolphins are not the only ones talking, and in this wide-ranging and accessible book, Herzing explores the astonishing realities of interspecies communication, a skill that humans currently lack.
 
Is Anyone Listening? connects research on dolphin communication to findings from Jane Goodall on chimpanzees, Dian Fossey on mountain gorillas, Cynthia Moss on African elephants, and others driving today’s exploration of possible animal languages. Although humans have long attempted to crack animal communication codes, only now do we have the advanced machine-learning tools to help. As Herzing reveals, researchers are finding fascinating hints of language in nonhuman species, including linguistic structures, vowel equivalents, and complex repeated sequences. By looking at the many ways animals use and manipulate signals, we see that we’ve only just begun to appreciate the diversity of animal intelligence and the complicated and subtle aspects of animal communication.
 
Considering dolphins and other nonhuman animals as colleagues instead of research subjects, Herzing asks us to meet animals as both speakers and listeners, as mutually curious beings, and to listen to what they are saying.

Constantine Slobodchikoff and colleagues synthesize the results of their long-running study of Gunnison’s prairie dogs (Cynomys gunnisoni), one of the keystone species of the short-grass prairie ecosystem. They set their research in the context of the biology of the five Cynomys species found in the United States and Mexico, and detail their investigation into the prairie dogs’ sophisticated system of barks, yips, and chirps, which Slobodchikoff argues represents a referential communication capable of fine distinctions among predators.

Seen as vermin that spoiled valuable rangeland, prairie dogs were long the subject of eradication campaigns and are now threatened by habitat loss and the loss of genetic diversity. The authors hope their research will help to pull the prairie dog back from the brink of extinction, as well as foster an appreciation of larger conservation challenges. By examining the complex factors behind prairie dog decline, we can begin to understand the problems inherent in our adversarial relationship with the natural world. Understanding these interactions is the first step toward a more sustainable future.

From the calling macaw and the roaring lion to the dancing lyrebird, animals all around us can be heard and seen communicating with each other and, occasionally, with us. Why they do so, what their utterances mean, and how much we know about them are the subject of Songs, Roars, and Rituals. This is a concise, yet comprehensive, introduction to the complexities of communication in animals.

Rogers and Kaplan take us on an exciting journey through communication in the animal world, offering insights on how animals communicate by sight, sound, smell, touch, and even electrical signaling. They explore a wide variety of communication patterns in many species of mammals and birds and discuss in detail how communication signals evolved, how they are learned, and what song and mimicry may mean.

An up-to-date account of the science of animal communication, this book also considers modern concepts (such as that of deceptive communication) and modern controversies, primarily those surrounding the evolution of human language and the use of symbolic language by apes. It concludes with a thought-provoking look at the future of communication between humans and animals.

In creatures as different as crickets and scorpions, mole rats and elephants, there exists an overlooked channel of communication: signals transmitted as vibrations through a solid substrate. Peggy Hill summarizes a generation of groundbreaking work by scientists around the world on this long understudied form of animal communication.

Beginning in the 1970s, Hill explains, powerful computers and listening devices allowed scientists to record and interpret vibrational signals. Whether the medium is the sunbaked savannah or the stem of a plant, vibrations can be passed along from an animal to a potential mate, or intercepted by a predator on the prowl. Vibration appears to be an ancient means of communication, widespread in both invertebrate and vertebrate taxa. Hill synthesizes in this book a flowering of research, field studies documenting vibrational signals in the wild, and the laboratory experiments that answered such questions as what adaptations allowed animals to send and receive signals, how they use signals in different contexts, and how vibration as a channel might have evolved.

Vibrational Communication in Animals promises to become a foundational text for the next generation of researchers putting an ear to the ground.