Origin of Species Variorum

→ homes, so as to be better fitted for them than they were at first. 1866 1869 1872

homes. 1859 1860 1861

→ we may infer 1861 1866 1869 1872

I believe 1859 1860

→ because they bred 1869 1872

bred 1859 1860 1861 1866

→ OMIT 1872

or wild dog 1859 1860 1861 1866 1869

→ for they live 1869 1872

living free 1859 1860 1861 1866

→ OMIT 1869 1872

I am inclined to look at 1859 1860 1861 1866

→ may be looked at as 1869 1872

as 1859 1860 1861 1866

→ OMIT 1869 1872

as that former species 1859 1860 1861 1866

→ having formerly endured 1869 1872

were capable of enduring 1859 1860 1861 1866

→ OMIT 1869 1872

I can see no reason to doubt that 1859 1860 1861 1866

and conversely; but we do not positively know that these animals were strictly adapted to their native climate,

but

yet

though

in all

ordi- nary

ordinary

cases we assume such to be the case; nor do we know that they have subsequently become

acclimatised

specially acclimatised

to their new →homes, so as to be better fitted for them than they were at first.

As →we may infer that our domestic animals were originally chosen by uncivilised man because they were useful and →because they bred readily under confinement, and not because they were subsequently found capable of far-extended transportation,

I think

....

the common and extraordinary capacity in our domestic animals of not only withstanding the most different

climates

climates,

but of being perfectly fertile (a far severer test) under them, may be used as an argument that a large proportion of other

animals,

animals

now in a state of

nature,

nature

could easily be brought to bear widely different climates. We must not, however, push the foregoing argument too far, on account of the probable origin of some of our domestic animals from several wild

stocks:

stocks;

the blood, for instance, of a tropical and arctic wolf →OMIT may perhaps be mingled in our domestic breeds. The rat and mouse cannot be considered as domestic animals, but they have been transported by man to many parts of the world, and now have a far wider range than any other

rodent,

rodent;

→for they live under the cold climate of Faroe in the north and of the Falklands in the south, and on many

islands

an island

in the torrid zones. Hence →OMIT adaptation to any special climate →may be looked at as a quality readily grafted on an innate wide flexibility of constitution,

which is

....

common to most animals. On this view, the capacity of enduring the most different climates by man himself and by his domestic animals, and

such

the

facts

fact

→OMIT of the

elephant

extinct elephant

and rhinoceros →having formerly endured a glacial climate, whereas the living species are now all tropical or sub-tropical in their habits, ought not to be looked at as anomalies, but

merely

....

as examples of a very common flexibility of constitution, brought, under peculiar circumstances, into

play.

action.

How much of the acclimatisation of species to any peculiar climate is due to mere habit, and how much to the natural selection of varieties having different innate constitutions, and how much to both means combined, is

a very

obscure question. That habit or custom has some

influence

influence,

I must believe, both from

analogy,

analogy

and from the incessant advice given in agricultural works, even in the ancient Encyclopædias of China, to be very

cau- tious

cautious

transposing

transporting