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Author: R. Reinboth Publisher: Springer Science & Business Media ISBN: 364266069X Category : Science Languages : en Pages : 464
Book Description
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.
Author: R. Reinboth Publisher: Springer Science & Business Media ISBN: 364266069X Category : Science Languages : en Pages : 464
Book Description
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.
Author: Ralph Waldo Trine Publisher: Read Books Ltd ISBN: 1473340667 Category : Body, Mind & Spirit Languages : en Pages : 88
Book Description
This book contains a fascinating treatise on ethical animal treatment, with information on cultural differences, social implications, history, and much more. A veritably thought-provoking and insightful volume, "Every Living Creature - or Heart-Training Through the Animal World" would make for a worthy addition to any collection and is not to be missed by animal lovers. Contents include: "Hunting", "Vivisection", "Docking", "Cattle Transport", "Dress and Fashion", "Flesh as Food", "Sport and War", "Treatment of Criminals", "Home for Animals", "The Enduring Soul", "Heart-Training", and more. Many vintage books such as this are becoming increasingly rare and expensive. We are republishing this volume now in an affordable, modern, high-quality edition complete with a specially commissioned new introduction.
Author: David Low Publisher: Read Books Ltd ISBN: 1473343089 Category : Technology & Engineering Languages : en Pages : 104
Book Description
This fascinating essay by David Low explores in detail what divides members of the animal kingdom, as well as the concept of "external form". Low looks at history, geography, biology, and natural history in an adventurous attempt to better understand our animal counterparts. "Divisions of the Animal Kingdom and Properties of External Form" is highly recommended for those with an interest in animal biology, and it would make for a fantastic addition to collections of related literature. Many vintage books such as this are becoming increasingly scarce and expensive. We are republishing this volume now in a modern, high-quality edition complete with the original text and artwork.
Author: R. Reinboth
Author: R. Reinboth
Author: Maurice Burton
Author: Georges baron Cuvier
Author: Georges baron Cuvier
Author: Georges baron Cuvier
Author: Ralph Waldo Trine
Author: Georges baron Cuvier
Author: Georges baron Cuvier
Author: David Low
Author: Thomas Rymer Jones