Learn More About This
Directory
This directory sponsored by SIQL, a Spider Makers company...
13. CHAPTER I VARIATION UNDER DOMESTICATION
- www.zoo.uib.no
- CHAPTER I VARIATION UNDER DOMESTICATION .
- With respect to the direct action, we must bear in mind that in every case, as Professor Weismann has lately insisted, and as I have incidentally shown in my work on Variation under Domestication, there are two factors: namely, the nature of the organism, and the nature of the conditions. ...
- I may add, that as some organisms breed freely under the most unnatural conditions (for instance, rabbits and ferrets kept in hutches), showing that their reproductive organs are not easily affected; so will some animals and plants withstand domestication or cultivation, and vary very slightly- perhaps hardly more than in a state of nature. ...
- I do not believe, as we shall presently see, that the whole amount of difference between the several breeds of the dog has been produced under domestication; I believe that a small part of the difference is due to their being descended from distinct species. ...
- It has often been assumed that man has chosen for domestication animals and plants having an extraordinary inherent tendency to vary, and likewise to withstand diverse climates. I do not dispute that these capacities have added largely to the value of most of our domesticated productions: but how could a savage possibly know, when he first tamed an animal, whether it would vary in succeeding generations, and whether it would endure other climates? Has the little variability of the ass and goose, or the small power of endurance of warmth by the reindeer, or of cold by the common camel, prevented their domestication? I cannot doubt that if other animals and plants, equal in number to our domesticated productions, and belonging to equally diverse classes and countries, were taken from a state of nature, and could be made to breed for an equal number of generations under domestication, they would on an average vary as largely as the parent species of our existing domesticated productions have varied. ...
- Again, all recent experience shows that it is difficult to get wild animals to breed freely under domestication, yet on the hypothesis of the multiple origin of our pigeons, it must be assumed that at least seven or eight species were so thoroughly domesticated in ancient times by half-civilised man, as to be quite prolific under confinement. ...
- Some authors believe that long-continued domestication eliminates this strong tendency to sterility in species. ...
- From these several reasons, namely,- the improbability of man having formerly made seven or eight supposed species of pigeons to breed freely under domestication;- these supposed species being quite unknown in a wild state, and their not having become anywhere feral;- these species presenting certain very abnormal characters, as compared with all other Columbidae, though so like the rock-pigeon in most respects;- the occasional reappearance of the blue colour and various black marks in all the breeds, both when kept pure and when crossed;- and lastly, the mongrel offspring being perfectly fertile;- from these several reasons taken together, we may safely conclude that all our domestic breeds are descended from the rock-pigeon or Columba livia with its geographical sub-species. ...
- livia has been found capable of domestication in Europe and in India; and that it agrees in habits and in a great number of points of structure with all the domestic breeds. ...
14. Agricultural Revolution - Domestication
- www.wsu.edu
15. Blog This: » The domestication of biotech | Between the Lines | ZDNet.com
- blogs.zdnet.com
- The domestication of biotech.
- The domestication of biotech by ZDNet's -- Renown physicist Freeman Dyson and his son George, a historian of technology, talked about how biotechnology will shape the 21st century as computers did the 20th century. Freeman Dyson called biotech the "new art form of the 21st century," and predicted that the "domestication" of biotechnology will open up creativity to millions, from do-it-yourself kits for gardeners to low cost DNA synthesizers for teens. ...
- php?p=253" rel="bookmark" title="Permanent Link: The domestication of biotech"> The domestication of biotech</a> by <a href="http://zdnet. ... Freeman Dyson called biotech the "new art form of the 21st century," and predicted that the "domestication" of biotechnology will open up creativity to millions, from do-it-yourself kits for gardeners to low cost DNA synthesizers for teens. ...
16. Evolution, consequences and future of plant and animal domestication
- www.nature.com
- Evolution, consequences and future of plant and animal domestication.
- Domestication interests us as the most momentous change in Holocene human history. ...
17. Journal of the Alabama Academy of Science: The domestication of the dog in general--and dog burial research in the southeastern United States.
- www.findarticles.com
- ) The domestication of the dog in general--and dog burial research in the southeastern United States. ...
- Several problems concerning the domestication of the dog have challenged anthropologists for decades. The previously accepted views of the dog's origins, method of domestication and approximate evolutionary dates are now being challenged by new scientific methods such as mitochondrial DNA. ...
- There are several problems concerning the domestication of the dog that have challenged anthropologists for many years. ...
18. The Domestication of Plants and Animals - the Agricultural Revolution
- www.mc.maricopa.edu
- Domestication: making animals and plants dependent upon humans.
19. The Domestication of the Savage Mind - Cambridge University Press
- uk.cambridge.org
- Home > Catalogue > The Domestication of the Savage Mind Details.
- The Domestication of the Savage Mind.
20. The Consequences of Domestication and Sedentism--Emily A. Schultz & Robert H. Lavenda
- www.primitivism.com
- The Consequences of Domestication and Sedentism.
- Sedentism and domestication, separately and together, transformed human life in ways that still affect us today.
- Sedentism and domestication represent not just a technological change but also a change in worldview. ...
- Deforestation, soil loss, silted streams, and the loss of many native species followed domestication. ...
21. Dog domestication, The secret life of the dog
- drbeetle.homestead.com
- 'The secret life of the dog' is an interesting documentary about the evolution and domestication of dog from wolf. ...
- Another interesting part of the documentary described some research in Russia on the artificial domestication of the fox. ... Some also developed white fur, suggesting biochemical changes had also occurred during the domestication process. ... Domestication does not involve breeding aggression out of a wild animal, but rather an alteration in what an animal considers to be a part of its family. ... Domestication is more to do with extending the 'puppy' stage in the fox, where juvenile playfulness and bonding is selected. ... The retention of juvenile traits in adults, pedomorphosis, appears to be a common feature of domestication in other animals as well. ...
- Links on dog domestication.
- Domestication of the dogEvolution of North American canidsStalking the ancient dogThe Pleistocene: dog domestication.
22. Domestication of animals
- www.le.ac.uk
23. ARS | Publication request: A BAC CONTIG SPANNING THE MAJOR DOMESTICATION GENE Q IN WHEAT AND IDENTIFICATION OF A CANDIDATE GENE
- www.ars.usda.gov
- ARS | Publication request: A BAC CONTIG SPANNING THE MAJOR DOMESTICATION GENE Q IN WHEAT AND IDENTIFICATION OF A CANDIDATE GENE .
- Title: A BAC CONTIG SPANNING THE MAJOR DOMESTICATION GENE Q IN WHEAT AND IDENTIFICATION OF A CANDIDATE GENE .
- A Bac Contig Spanning The Major Domestication Gene Q In Wheat And Identification Of A Candidate Gene. ...
- For domesticated bread wheat, the free-threshing characteristic of the spike is probably the most important domestication trait. ...
- Technical Abstract: The Q locus played a major role in the domestication of wheat because it confers the free-threshing character and influences many other agronomically important traits. ...
24. Domestication
- www.iacuc.arizona.edu
- DOMESTICATION.
- By whatever means, domestication proceeded so that fossil remains dating from the beginning of the Bronze age (4500 B. ...
Other related topics:
Do you have a great site about Domestication? Is
your Domestication site listed here?
Would you like a prefered placement of your site in this directory?
It's easy! First place, the HTML from the box below on your page that
you would like listed in this directory.
Then use our link submission request with
your name, your contact information, and the URL of your site that has
a link to this directory. After we
verify your link to us, we'll make sure your site stays in our directory,
and we'll give it prefered placement here also.
Here is how to make a simple text link to us. Just copy the code in this
box to your website:
We can also develop a custom Guide To The Internet for your site. Please
request your own
custom Guide To The Internet.
This custom Guide To The Internet produced by
Siql. Visit us today, and find out how to get your own
custom guide to the Internet, and how to get your site
listed in our guides.
Copyright 1995-2005 by Siql. All
Rights Reserved.