Excerpt from Natural Conditions of Existence: As They Affect Animal Life
Darwin showed the possibility of discovering the path which nature struck out in order to produce her endless variety of animal forms, and of detecting the means She has employed in her task. Hence first arose those efforts, so natural in the zoologist, to acquire some comprehension of the succession in time Of the different types in the animal kingdom, since all who recognise Darwin's teaching must regard it not as an arbitrary and lawless assemblage of independent Species, but, on the contrary, as a great family of organisms of which the individual members, whether living or extinct, are united by a real.
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Paperback. Condition: New. Print on Demand. This book is a seminal work in evolutionary biology, especially relevant to modern zoology. This text proposes that morphological and physiological traits can be used to both outline an animalās genealogy and describe how it has adapted to its current habitat. The author argues that morphological traits, which have been preserved by transmission through successive generations, and physiological characteristics, which have been developed to suit an animalās environment, can be distinguished and differentiated. From there, the author uses examples to show how traits that have originated by adaptation, and thus were initially worthless for determining the afnities of animals, assume importance when used to compare the broader systematic scale. The author concludes that all parts of the animal body, previously regarded as morphological characters, must nevertheless have a certain functional value and physiological activity, arguing that these characters may determine the types of form in whole classes, orders, or families. This expansive work has had a far-reaching influence on modern zoology, helping to establish it as an equal to other sciences, and remains an important read for those seeking to understand the development of animals. Forgotten Books publishes hundreds of thousands of rare and classic books. 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. The digital edition of all books may be viewed on our website before purchase. print-on-demand item. Seller Inventory # 9781330228876_0
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781330228876
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PAP. Condition: New. New Book. Shipped from UK. Established seller since 2000. Seller Inventory # LW-9781330228876
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Condition: Sehr gut. Zustand: Sehr gut - Gepflegter, sauberer Zustand. | Seiten: 498 | Sprache: Englisch | Produktart: Bücher. Seller Inventory # 25802626/2
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Paperback. Condition: Brand New. 498 pages. 8.98x5.98x1.06 inches. This item is printed on demand. Seller Inventory # zk1330228871
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