Origin of Species Variorum

→ In our domestic animals, if any part, or the whole animal, be neglected and no selection be applied, that part (for instance, the comb in the Dorking fowl) or the whole breed will cease to have a nearly uniform character. 1859 1860 1861

In our domestic animals, if any part, or the whole animals, be neglected and no selection be applied, that part (for instance, the comb in the Dorking fowl) or the whole breed will cease to have a nearly uniform character. 1866

First let me remark that if any part in our domestic animals, or the whole animal, be neglected and no selection be applied, that part (for instance, the comb in the Dorking fowl) or the whole breed will cease to have a uniform character. 1869

First let me make some preliminary remarks. 1872

→ The 1859 1860 1861 1866 1869

If, in our domestic animals, any part or the whole animal be neglected, and no selection be applied, that part (for instance, the comb in the Dorking fowl) or the whole 1872

→ then be said 1859 1860 1861 1866 1869

cease 1872

→ degenerated. 1859 1860 1861 1866 1869

a uniform character: and the breed may be said to be degenerating. 1872

→ in our domestic animals those points, 1859 1860 1861 1866

those points in our domestic animals, 1869 1872

→ pigeon; 1859 1860 1861 1866 1869

same breed of the pigeon, and 1872

→ the 1859 1860 1861 1866

that of the 1869 1872

→ to perfection, and frequently individuals are born which depart 1859 1860 1861 1866

perfect birds, some frequently departing 1869

perfect birds, many departing 1872

→ further variability of all kinds, 1859 1860 1861 1866

further variability, 1869

new variations, 1872

presumption is that it is of high importance to that

species:

species;

nevertheless

it is

the part

in this case

eminently liable to variation. Why should this be so? On the view that each species has been independently created, with all its parts as we now see them, I can see no explanation. But on the view that groups of species

are

have

descended from

some other

other

species, and have been modified through natural selection, I think we can obtain some light. →In our domestic animals, if any part, or the whole animal, be neglected and no selection be applied, that part (for instance, the comb in the Dorking fowl) or the whole breed will cease to have a nearly uniform character. →The breed will →then be said to have →degenerated. In rudimentary organs, and in those which have been but little specialised for any particular purpose, and perhaps in polymorphic groups, we see a nearly parallel

~~natural~~

natural

case; for in such cases natural selection either has not or cannot

have come

come

into full play, and thus the

organization

organisation

is left in a fluctuating condition. But what here

more particularly

~~more especially~~

more especially

concerns us is, that →in our domestic animals those points, which at the present time are undergoing rapid change by continued selection, are also eminently liable to variation. Look at the

individuals

breeds

of the →pigeon; see what a prodigious amount of difference there is in the

beaks

beak

~~the different~~

the different

tumblers, in the

beaks

beak

and wattle of

~~the different~~