Sexual Dimorphism In The Animal Kingdom A Theory Of The Evolution Of Secondary Sexual Characters
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Sexual Dimorphism In The Animal Kingdom
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Author : J. T. Cunningham
language : en
Publisher: Forgotten Books
Release Date : 2017-11-02
Sexual Dimorphism In The Animal Kingdom written by J. T. Cunningham and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-02 with Science categories.
Excerpt from Sexual Dimorphism in the Animal Kingdom: A Theory of the Evolution of Secondary Sexual The individuals generated by two parents of the same species are in many cases similar to those parents and to one another, with the exception of those irregular and generally slight differences which we call individual variations. But in other cases we find that the individuals generated by the same two parents differ greatly either from their parents or from one another, so that the species includes two or more well-marked forms or types, intermediate forms being more or less exceptional. The different forms may be sexually perfect, or may reproduce without sexual union, or may be quite sterile. When they are sexually perfect they unite in sexual intercourse and reproduce the same distinct types, which although constantly mingled in the fertilised ova, separate spontaneously in each successive generation, like oil and water after agitation. This is the well-known phenomenon of polymorphism. One of the most frequent cases of this is sexual dimorphism, the occurrence of characters peculiar to the males on the one hand, to the females on the other. Another important instance is the distinction of several classes of individuals in social insects, such as workers and queens, or workers, soldiers and fertile forms. Thirdly, we have to consider the important fact that the structure of the individual is not constant throughout its existence, but that in many cases there is a more or less com plicated metamorphosis, the difference between the two states of the same individual at different periods of life being often greater than that between individuals of distinct orders or classes. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Sexual Dimorphism In The Animal Kingdom
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Author : Joseph Thomas Cunningham
language : en
Publisher: Palala Press
Release Date : 2016-05-21
Sexual Dimorphism In The Animal Kingdom written by Joseph Thomas Cunningham and has been published by Palala Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-05-21 with categories.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Sexual Dimorphism In The Animal Kingdom A Theory Of The Evolution Of Secondary Sexual Characters
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Author : J T 1859-1935 Cunningham
language : en
Publisher: Legare Street Press
Release Date : 2022-10-27
Sexual Dimorphism In The Animal Kingdom A Theory Of The Evolution Of Secondary Sexual Characters written by J T 1859-1935 Cunningham and has been published by Legare Street Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-27 with categories.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Sexual Dimorphism In The Animal Kingdom A Theory Of The Evolution Of Secondary Sexual Characters 1900
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Author : Joseph Thomas Cunningham
language : en
Publisher:
Release Date : 2009-05
Sexual Dimorphism In The Animal Kingdom A Theory Of The Evolution Of Secondary Sexual Characters 1900 written by Joseph Thomas Cunningham and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-05 with Literary Collections categories.
This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.
Sexual Dimorphism In The Anima
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Author : J. T. (Joseph Thomas) 1859 Cunningham
language : en
Publisher: Wentworth Press
Release Date : 2016-08-27
Sexual Dimorphism In The Anima written by J. T. (Joseph Thomas) 1859 Cunningham and has been published by Wentworth Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-27 with History categories.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Sexual Dimorphism In The Animal Kingdom
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Author : J. T. Cunningham
language : en
Publisher: Forgotten Books
Release Date : 2015-06-25
Sexual Dimorphism In The Animal Kingdom written by J. T. Cunningham and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-25 with Science categories.
Excerpt from Sexual Dimorphism in the Animal Kingdom: A Theory of the Evolution of Secondary Sexual It must be admitted that my discussion of Sexual Dimorphism in this work is incomplete, and this in two senses. In the first place, evidence of the kind I have endeavoured to collect is in many cases wanting, and has yet to be obtained in the future. The absence of such information is partly due to the difficulty of obtaining it, to the want of opportunities, and partly to the neglect of opportunities and to the absence of any special efforts to obtain it. It is not my intention by such an assertion to throw the blame upon collectors and field naturalists. Their methods of work are naturally adapted to the ends they have in view, and so long as the minute study of habits and conditions of life is generally regarded as of little importance, so long will the collection of specimens and the discovery of species be considered the chief objects of a zoological expedition. It is strange that even from the point of view of selection more attention has not been devoted since Darwin's time to the study of the particular functions or utilities of special characters. When we desire to know fully the irritations and stimulations produced on living tissues by the special habits of the animal, and how its special organs or characters are affected when they come into action, it is clear that the detailed study of the habits of the living animal becomes still more important. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Sexual Dimorphism In The Animal Kingdom A Theory Of The Evolution Of Secondary Sexual Characters
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Author : J. T. Cunningham
language : en
Publisher: Trieste Publishing
Release Date : 2017-10-04
Sexual Dimorphism In The Animal Kingdom A Theory Of The Evolution Of Secondary Sexual Characters written by J. T. Cunningham and has been published by Trieste Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-04 with History categories.
Trieste Publishing has a massive catalogue of classic book titles. Our aim is to provide readers with the highest quality reproductions of fiction and non-fiction literature that has stood the test of time. The many thousands of books in our collection have been sourced from libraries and private collections around the world.The titles that Trieste Publishing has chosen to be part of the collection have been scanned to simulate the original. Our readers see the books the same way that their first readers did decades or a hundred or more years ago. Books from that period are often spoiled by imperfections that did not exist in the original. Imperfections could be in the form of blurred text, photographs, or missing pages. It is highly unlikely that this would occur with one of our books. Our extensive quality control ensures that the readers of Trieste Publishing's books will be delighted with their purchase. Our staff has thoroughly reviewed every page of all the books in the collection, repairing, or if necessary, rejecting titles that are not of the highest quality. This process ensures that the reader of one of Trieste Publishing's titles receives a volume that faithfully reproduces the original, and to the maximum degree possible, gives them the experience of owning the original work.We pride ourselves on not only creating a pathway to an extensive reservoir of books of the finest quality, but also providing value to every one of our readers. Generally, Trieste books are purchased singly - on demand, however they may also be purchased in bulk. Readers interested in bulk purchases are invited to contact us directly to enquire about our tailored bulk rates.
Sexual Dimorphism In The Animal Kingdom
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Author : Joseph Thomas Cunningham
language : en
Publisher:
Release Date : 1900
Sexual Dimorphism In The Animal Kingdom written by Joseph Thomas Cunningham and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1900 with Evolution categories.
The Descent Of Man And Selection In Relation To Sex
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Author : Charles Darwin
language : en
Publisher: Princeton University Press
Release Date : 2008-09-02
The Descent Of Man And Selection In Relation To Sex written by Charles Darwin and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-09-02 with Science categories.
In the current resurgence of interest in the biological basis of animal behavior and social organization, the ideas and questions pursued by Charles Darwin remain fresh and insightful. This is especially true of The Descent of Man and Selection in Relation to Sex, Darwin's second most important work. This edition is a facsimile reprint of the first printing of the first edition (1871), not previously available in paperback. The work is divided into two parts. Part One marshals behavioral and morphological evidence to argue that humans evolved from other animals. Darwin shoes that human mental and emotional capacities, far from making human beings unique, are evidence of an animal origin and evolutionary development. Part Two is an extended discussion of the differences between the sexes of many species and how they arose as a result of selection. Here Darwin lays the foundation for much contemporary research by arguing that many characteristics of animals have evolved not in response to the selective pressures exerted by their physical and biological environment, but rather to confer an advantage in sexual competition. These two themes are drawn together in two final chapters on the role of sexual selection in humans. In their Introduction, Professors Bonner and May discuss the place of The Descent in its own time and relation to current work in biology and other disciplines.
Evolution
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Author : Patrick Geddes
language : en
Publisher: Trieste Publishing
Release Date : 2017-09-17
Evolution written by Patrick Geddes and has been published by Trieste Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-17 with History categories.
Trieste Publishing has a massive catalogue of classic book titles. Our aim is to provide readers with the highest quality reproductions of fiction and non-fiction literature that has stood the test of time. The many thousands of books in our collection have been sourced from libraries and private collections around the world.The titles that Trieste Publishing has chosen to be part of the collection have been scanned to simulate the original. Our readers see the books the same way that their first readers did decades or a hundred or more years ago. Books from that period are often spoiled by imperfections that did not exist in the original. Imperfections could be in the form of blurred text, photographs, or missing pages. It is highly unlikely that this would occur with one of our books. Our extensive quality control ensures that the readers of Trieste Publishing's books will be delighted with their purchase. Our staff has thoroughly reviewed every page of all the books in the collection, repairing, or if necessary, rejecting titles that are not of the highest quality. This process ensures that the reader of one of Trieste Publishing's titles receives a volume that faithfully reproduces the original, and to the maximum degree possible, gives them the experience of owning the original work.We pride ourselves on not only creating a pathway to an extensive reservoir of books of the finest quality, but also providing value to every one of our readers. Generally, Trieste books are purchased singly - on demand, however they may also be purchased in bulk. Readers interested in bulk purchases are invited to contact us directly to enquire about our tailored bulk rates.