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Animals; A Textbook of Zoology (Paperback) Loot Price: R271
Discovery Miles 2 710
Animals; A Textbook of Zoology (Paperback): Us Government, David Starr Jordan
Animals; A Textbook of Zoology (Paperback): Us Government, David Starr Jordan

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Animals; A Textbook of Zoology (Paperback)

Us Government, David Starr Jordan

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Loot Price R271 Discovery Miles 2 710

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ...of a species of animal is the region in which it is found in a state of Xature. It is currently believed that the habitat of any creature is the region for which it is best adapted. But the reverse of this is often true. There are many cases in which a species introduced in a new territory, through the voluntary or involuntary influence of man, ha3 shown a marvelous adaptation and power of persistence. The rapid spread of rabbits and pigs as wild animals in Australia, of horses and cattle in South America, and of the English sparrow in North America, of bumble-bees and houseflies in New Zealand, are illustrations of this. Not one of these animals has maintained itself in the wild state in its native land as successfully as in these new countries to which it has been introduced. The work of introduction of useful animals illustrates the same fact. The shad, striped bass, and cat-fish from the Potomac River, introduced into the Sacramento River and its tributaries by the United States Fish Commission, are examples in point. These valued food-fishes are nowhere more at home than in the new waters where no species of their types had ever existed before. The carp, originally brought to Europe from China, and thence to the United States as a foodfish, becomes in California a nuisance, which can not be eradicated, destroying the eggs and the foodstuff of far better fish. In all mountain regions waterfalls are likely to occur, and these serve as barriers, preventing the ascent of trout and other fishes. On this account in the mountains of California, Colorado, Wyoming, and other States, hundreds of lakes and streams suitable for trout are found in which no fishes ever exist. In the Yellowstone Park this fact is especially noticeable. This region...

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: 2013
First published: 2013
Authors: Us Government • David Starr Jordan
Dimensions: 246 x 189 x 8mm (L x W x T)
Format: Paperback - Trade
Pages: 142
ISBN-13: 978-1-234-19328-7
Barcode: 9781234193287
Categories: Books
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LSN: 1-234-19328-0

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