Origin of Species Variorum

→ which have been raised 1859 1860 1861 1866 1869

were raised which have appeared 1872

→ thirty or forty years. 1859 1860 1861 1866 1869

half-century. 1872

→ In the case of animals with separate sexes, 1859 1860 1861 1866 1869

With animals, 1872

→ kept 1859 1860

improved and kept 1861 1866 1869 1872

→ in 1859 1860

for recently in certain parts of Spain and of the United States this animal has been surprisingly modified and improved by careful selection: in 1861 1866 1869

for recently in certain parts of Spain and of the United States this animal has been surprisingly modified and improved by careful selection; in 1872

→ breeds. 1859 1860

breeds; but the goose seems to have a singularly inflexible organisation. 1861 1866 1869

breeds; 1872

distinct species) those many admirable varieties of the strawberry →which have been raised during the last →thirty or forty years.

→In the case of animals with separate sexes, facility in preventing crosses is an important element

~~of success~~

of success

in the formation of new races, — at least, in a country which is already stocked with other races. In this respect enclosure of the land plays a part. Wandering savages or the inhabitants of open plains rarely possess more than one breed of the same species. Pigeons can be mated for life, and this is a great convenience to the fancier, for thus many races may be →kept true, though mingled in the same aviary; and this circumstance must have largely favoured the

~~improvement and~~

improvement and

formation of new breeds. Pigeons, I may add, can be propagated in great numbers and at a very quick rate, and inferior birds may be freely rejected, as when killed they serve for food. On the other hand, cats, from their nocturnal rambling habits, cannot be

easily matched,

matched,

and, although so much valued by women and children, we

rarely

hardly ever

see a distinct breed

long kept

kept

up; such breeds as we do sometimes see are almost always imported from some other

country.

~~often~~

~~from~~

~~islands.~~

Although I do not doubt that some domestic animals vary less than others, yet the rarity or absence of distinct breeds of the cat, the donkey, peacock, goose, &c., may be attributed in main part to selection not having been brought into play: in cats, from the difficulty in pairing

them:

them;

in donkeys, from only a few being kept by poor people, and little attention paid to their breeding; →in peacocks, from not being very easily reared and a large stock not

kept:

kept;

in geese, from being valuable only for two purposes, food and feathers, and more especially from no pleasure having been felt in the display of distinct →breeds.