Origin of Species Variorum

→ to 1859 1860 1872

in most cases, to 1861 1866 1869

→ and I presume 1859 1860 1861

alone; so 1866 1869 1872

→ the whole of the 1859 1860 1861

the 1866

at least the greater part of the 1869 1872

→ in the same way as it is so plainly instinctive in young pheasants, though reared 1859 1860 1861

for I am informed by Captain Hutton that the young chickens of the parent-stock, the Gallus bankiva, when reared in India 1866 1869 1872

unconscious selection is still

in progress,

at work,

as each man tries to procure, without intending to improve the breed, dogs which

~~will~~

will

stand and hunt best. On the other hand, habit alone in some cases has sufficed;

hardly any

animal is more

difficult,

difficult

→to tame than the young of the wild rabbit; scarcely any animal is tamer than the young of the tame rabbit; but I

can hardly

do not

suppose that domestic rabbits have

often

ever

been selected for

tameness

tameness;

→and I presume that we must attribute →the whole of the inherited change from extreme wildness to extreme tameness,

chiefly

~~simply~~

simply

to habit and long-continued close confinement.

Natural instincts are lost under domestication: a remarkable instance of this is seen in those breeds of fowls which very rarely or never become "broody," that is, never wish to sit on their eggs. Familiarity alone prevents our seeing how

largely

universally

and

how permanently

largely

the minds of our domestic animals have been

modified.

modified

~~domestication.~~

domestication.

It is scarcely possible to doubt that the

love,

love

of man has become instinctive in the dog. All wolves, foxes, jackals, and species of the cat genus, when kept tame, are most eager to attack poultry, sheep, and pigs; and this tendency has been found incurable in dogs which have been brought home as puppies from

countries

countries,

such as Tierra del Fuego and Australia, where the savages do not keep these domestic animals. How rarely, on the other hand, do our civilised dogs, even when quite young, require to be taught not to attack poultry, sheep, and pigs! No doubt they occasionally do make an attack, and are then beaten; and if not cured, they are destroyed; so that

habit

habit,

and

with

some degree of

selection

selection,

have

has

probably concurred in civilising by inheritance our dogs. On the other hand, young chickens have lost, wholly by habit, that fear of the dog and cat which no doubt was originally instinctive in

them;

them,

→in the same way as it is so plainly instinctive in young pheasants, though reared