Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals (1907) (14770806374)

Identifier: evolutionanimall00jord (find matches)

Title: Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals

Year: 1907 (1900s)

Authors: Jordan, David Starr, 1851-1931 Kellogg, Vernon L. (Vernon Lyman), 1867-1937

Subjects: Evolution

Publisher: New York, D. Appleton and Company

Contributing Library: MBLWHOI Library

Digitizing Sponsor: MBLWHOI Library

Text Appearing Before Image:

FIG. 51.—Typical American merino ewe, a highly specialized breed with fine close-set wool. (After Shaw.) on fat, docility, intelligence, or of whatever it may be. Underordinary conditions these characters selected are not traits ofquality. They do not represent a new thing, a new acquisition,but a different degree of development of an old one, or, at most,a change in their relative arrangement, an alteration of bio-logical perspective. The characters which distinguish true breeds as well as truespecies are not of this order. They are in their essence quali-tative and not quantitative. They are not, as a rule, adaptive.One set of species or race traits is as good as another, if the goodqualities or adaptive qualities are represented in an equally7

Text Appearing After Image:

FIG. 52.—Heads of various British breeds of domestic cattle, showing variations inshape of head and condition of horns. (After Romanes.)

Evolution und Tierleben eine elementare Erörterung von Fakten, Prozessen, Gesetzen und Theorien 1907 Illustrationen von Rindern Buchillustrationen Naturgeschichte Evolution Biologie Zoologie hohe Auflösung Bilder aus dem Internetarchiv

1907

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