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Geographical zone

Any of the regions of the surface of the earth loosely divided according to latitude or longitude.

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Why do Africans have large noses and lips?

... are mostly living in the regions near the equator, and because of geographical reasons, there are many tropical desert, steppe zone, which result in hot weather, dry climate with little rain. So in order to adapt to the ...

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by Steven2015
Tue Feb 10, 2015 2:55 am
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 35
Views: 253957

Ligers and Tigons oh my!

... of Hybrids Hybrids like ligers[1] and tigons[2] that live in hybrid zones are less fit, but act as safeguards from extinction of pure species ... distribution of genetic variation (Critchfield 110). Speciation is a geographical mechanism that exists due to an alteration in environment (Rosenzweig ...

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by Inuyasha
Tue May 10, 2005 9:55 pm
Forum: Zoology Discussion
Topic: Ligers and Tigons oh my!
Replies: 111
Views: 163216

Global Crayfish Distribution and Interspecific Competition

... feel free to relocate this post at your discretion; with its zoogeographical focus, it could just as aptly lie within the "Evolution" forum.] ... area occupied by the fluviatile crabs is very nearly the same as that zone of the earth's surface from which crayfish are excluded, or in which ...

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by Shagreen
Fri Mar 25, 2005 12:56 am
Forum: Zoology Discussion
Topic: Global Crayfish Distribution and Interspecific Competition
Replies: 4
Views: 18025

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