The Individual In The Animal Kingdom

The groundbreaking first book by a major evolutionary biologist, published in 1912, that anticipated current thinking about organismal complexity. Julian Huxley’s The Individual in the Animal Kingdom, published in 1912, is a concise and groundbreaking work that is almost entirely unknown today. In it, Huxley analyzes the evolutionary advances in life’s organizational complexity, anticipating many of today’s ideas about changes in individuality. Huxley’s overarching system of concepts and his coherent logical principles were so far ahead of their time that they remain valid to this day. In part, this is because his explicitly Darwinian approach carefully distinguished between the integrated form and function of hierarchies within organisms and loosely defined, nonorganismal ecological communities. In The Individual in the Animal Kingdom, we meet a youthful Huxley who uses his commanding knowledge of natural history to develop a nonreductionist account of life’s complexity that aligns with seminal early insights by Darwin, Wallace, Weismann, and Wheeler. As volume editors Richard Gawne and Jacobus Boomsma point out, this work disappeared into oblivion despite its relevance for contemporary research on organismal complexity and major evolutionary transitions. This MIT Press edition gives Huxley’s book a second hearing, offering readers a unique vantage point on the discoveries of evolutionary biology past and present.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

These arresting studio portraits capture the beauty, power, and even humor of 150 furry and feathered species - a delight for any animal or bird lover. Acclaimed photographer Randal Ford celebrates our fascination with and love of animals through his engaging portraits of the animal kingdom. A young male lion cub seems to sport a rebellious mohawk; a chimpanzee adopts a pensive pose; a curious duckling cocks his head at the camera lens and flaps his wings. The featured animals cover a wide range, from birds such as the African crane, cockatoos, flamingos, and roosters, to big cats such as tigers, cheetahs, and leopards, to Arabian horses, bulls, and Longhorn sheep, among many others. Bird and animal lovers will be drawn to the powerful and emotionally engaging images that seem to reveal the individual character of the other animals that share the Earth with us. Elegantly designed and packaged, this book will be the perfect gift and addition to the home of any lover of animals or fine photography.

When Richard Goldschmidt' coined the term "intersexuality" in 1915, he intended it to apply to normally dioecious species which exhibit some kind of mixture between male and female characters. However, as knowledge of the bewildering variability present in the sexual orga nization of members of the animal kingdom has increased, the original meaning of the word has changed. Today many authors define inter sexuality as "the presence of both male and female characteristics, or of intermediate sexual characteristics, in a single individual".2 This more extensive and widely accepted concept justifies the title of our book •. Among all the anatomical and physiological features of living organisms the reproductive system has a unique importance for the perpetuation of the species. Conversely, reproductive processes are of little or no account for the viability of the individual. Therefore, within the framework of general biology reproduction has all too often been looked at solely from the point of view of genetics. Lively discussions about genotypic versus phenotypic sex determination long dominated the sci entific literature on sexuality in animals; this one-sided emphasis has tended to obscure many important facets of an organism's ability to reproduce. Recent developments in current biological research have brought the classic problem of sex differentiation into focus again, and the rapid progress being made in comparative endocrinology has added a new di mension to the study of reproductive biology.

Publishers Weekly Most Anticipated Books of Fall 2019 A New York Times Editor’s Pick People Best Books Fall 2019 Chicago Tribune 28 Books You Need to Read Now Booklist’s Top Ten Sci-Tech Books of 2019 “It blew my mind to discover that teenage animals and teenage humans are so similar. Both are naive risk-takers. I loved this book!” —Temple Grandin, author of Animals Make Us Human and Animals in Translation A revelatory investigation of human and animal adolescence and young adulthood from the New York Times bestselling authors of Zoobiquity. With Wildhood, Harvard evolutionary biologist Barbara Natterson-Horowitz and award-winning science writer Kathryn Bowers have created an entirely new way of thinking about the crucial, vulnerable, and exhilarating phase of life between childhood and adulthood across the animal kingdom. In their critically acclaimed bestseller, Zoobiquity, the authors revealed the essential connection between human and animal health. In Wildhood, they turn the same eye-opening, species-spanning lens to adolescent young adult life. Traveling around the world and drawing from their latest research, they find that the same four universal challenges are faced by every adolescent human and animal on earth: how to be safe, how to navigate hierarchy; how to court potential mates; and how to feed oneself. Safety. Status. Sex. Self-reliance. How human and animal adolescents and young adults confront the challenges of wildhood shapes their adult destinies. Natterson-Horowitz and Bowers illuminate these core challenges through the lives of four animals in the wild: Ursula, a young king penguin; Shrink, a charismatic hyena; Salt, a matriarchal humpback whale; and Slavc, a roaming European wolf. Through their riveting stories—and those of countless others, from adventurous eagles and rambunctious high schooler to inexperienced orcas and naive young soldiers—readers get a vivid and game-changing portrait of adolescent young adults as a horizontal tribe, sharing behaviors and challenges, setbacks and triumphs. Upending our understanding of everything from risk-taking and anxiety to the origins of privilege and the nature of sexual coercion and consent, Wildhood is a profound and necessary guide to the perilous, thrilling, and universal journey to adulthood on planet earth.