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01 - Variations Under Domestication
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01-06 - Difficulty of distinguishing between Varieties and Species
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20
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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?
 | | donkey (ass) |
 | | reindeer |
 | | goose |
 | | camel |
 | | Snow Goose |
 | | Snow Goose |
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.
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01 - Variations Under Domestication
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01-07 - Origin of Domestic Varieties from one or more Species
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10
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In the case of most of our anciently domesticated animals and plants, it is not possible to come to any definite conclusion, whether they are descended from one or several wild species.
The argument mainly relied on by those who believe in the multiple origin of our domestic animals is, that we find in the most ancient times, on the monuments of Egypt, and in the lake-habitations of Switzerland, much diversity in the breeds;
 | | Egypt |
 | | Switzerland |
and that some of these ancient breeds closely resemble, or are even identical with, those still existing.
But this only throws far backwards the history of civilisation, and shows that animals were domesticated at a much earlier period than has hitherto been supposed.
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01 - Variations Under Domestication
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01-07 - Origin of Domestic Varieties from one or more Species
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20
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The lake-inhabitants of Switzerland cultivated several kinds of wheat and barley, the pea, the poppy for oil, and flax; and they possessed several domesticated animals.
| | Switzerland |
 | | wheat |
 | | barley |
 | | pea |
 | | poppy |
 | | oil |
 | | flax |
They also carried on commerce with other nations.
All this clearly shows, as Reer has remarked, that they had at this early age progressed considerably in civilisation; and this again implies a long continued previous period of less advanced civilisation, during which the domesticated animals, kept by different tribes in different districts, might have varied and given rise to distinct races.
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01 - Variations Under Domestication
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01-07 - Origin of Domestic Varieties from one or more Species
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30
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Since the discovery of flint tools in the superficial formations of many parts of the world, all geologists believe that barbarian man existed at an enormously remote period;
 | | flint |
and we know that at the present day there is hardly a tribe so barbarous, as not to have domesticated at least the dog.
The origin of most of our domestic animals will probably for ever remain vague.
But I may here state, that, looking to the domestic dogs of the whole world, I have, after a laborious collection of all known facts, come to the conclusion that several wild species of Canidae have been tamed, and that their blood, in some cases mingled together, flows in the veins of our domestic breeds. In regard to sheep and goats I can form no decided opinion.
 | | dog |
 | | sheep |
 | | goat |
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