Comparison with 1860 |
|
the close alliance of some of the inhabitants of the sea in the northern and southern temperate zones,
though separated by the whole intertropical ocean. Although two
areas areas 1859 1860 | countries 1861 1866 1869 1872 |
may present
the same the same 1859 1860 | the same 1861 1866 1869 1872 |
physical conditions
of life, of life, 1859 1860 |
as closely similar as the same species ever require, 1861 1866 1869 1872 |
we need feel no surprise at their inhabitants being widely different, if they have been for a long period completely
separated separated 1859 1860 | sundered 1861 1866 1869 1872 |
from each other; for as the relation of organism to organism is the most important of all relations, and as the two
areas areas 1859 1860 | countries 1861 1866 1869 1872 |
will have received colonists from some third source or from each other,
at various periods and in different proportions, the
course of modification in the two areas will inevitably
be be 1859 1860 | have been 1861 1866 1869 1872 |
different. |
|
On this view of migration, with subsequent modification, we can
see why oceanic islands should be
inhabited by few
species, but of these, that
many should be peculiar. We can
clearly see why those
animals which cannot cross wide spaces of ocean,
as frogs and terrestrial mammals, should
not inhabit oceanic islands; and why, on the other hand, new and peculiar species of bats,
which which 1859 1860 | animals which 1861 1866 1869 1872 |
can traverse the ocean, should so often be
found on islands far distant from any continent. Such facts
as the presence of peculiar species of bats,
and
the absence of all other mammals, on oceanic islands, are
utterly inexplicable on the theory of independent acts of creation. |
|
The existence of closely allied or representative species in any two areas, implies, on the theory of descent with modification, that the same parents
formerly inhabited both areas;
and we almost invariably find that wherever many closely allied species inhabit two areas, some identical species common
to both
still
exist. exist. 1859 1860 | exist there. 1861 1866 | exist. 1869 1872 |
Wherever many closely allied yet distinct species occur, many
doubtful forms and varieties of
the same species
likewise
occur. It is a rule of high generality that the
|
the close alliance of some of the inhabitants of the sea in the northern and southern temperate
zones, zones, 1859 1860 1861 | latitudes, 1866 1869 1872 |
though separated by the whole intertropical ocean. Although two
countries countries 1861 1866 1869 1872 | areas 1859 1860 |
may present
....... 1861 1866 1869 1872 | the same 1859 1860 |
physical conditions
as closely similar as the same species ever require, as closely similar as the same species ever require, 1861 1866 1869 1872 |
of life, 1859 1860 |
we need feel no surprise at their inhabitants being widely different, if they have been for a long period completely
sundered sundered 1861 1866 1869 1872 | separated 1859 1860 |
from each other; for as the relation of organism to organism is the most important of all relations, and as the two
countries countries 1861 1866 1869 1872 | areas 1859 1860 |
will have received colonists
from some third source or from each other, from some third source or from each other, 1859 1860 1861 1866 |
OMIT 1869 1872 |
at various periods and in different proportions,
the the 1859 1860 1861 1866 |
from some other country or from each other, the 1869 1872 |
course of modification in the two areas will inevitably
have been have been 1861 1866 1869 1872 | be 1859 1860 |
different. |
|
On this view of migration, with subsequent modification, we
can can 1859 1860 1861 | can 1866 1869 1872 |
see why oceanic islands
should be should be 1859 1860 1861 | are 1866 1869 1872 |
inhabited by
few few 1859 1860 1861 | only few 1866 1869 1872 |
species, but of these,
that that 1859 1860 1861 | why 1866 1869 1872 |
many
should be peculiar. should be peculiar. 1859 1860 1861 |
are peculiar or endemic forms. 1866 1869 1872 |
We
can can 1859 1860 1861 | can 1866 1869 1872 |
clearly see why
those those 1859 1860 1861 |
species of those groups of 1866 |
species belonging to those groups of 1869 1872 |
animals which cannot cross wide spaces of
ocean, ocean, 1859 1860 1861 1866 | the ocean, 1869 1872 |
as frogs and terrestrial mammals,
should should 1859 1860 1861 | do 1866 1869 1872 |
not inhabit oceanic islands; and why, on the other hand, new and peculiar species of bats,
animals which animals which 1861 1866 1869 1872 | which 1859 1860 |
can traverse the ocean,
should so often be should so often be 1859 1860 1861 |
are so often 1866 1869 |
are often 1872 |
found on islands far distant from any continent. Such
facts facts 1859 1860 1861 1866 | cases 1869 1872 |
as the presence of peculiar species of
bats, bats, 1859 1860 1861 1866 | bats 1869 1872 |
and and 1859 1860 1861 1866 |
on oceanic islands, and 1869 |
on oceanic islands and 1872 |
the absence of all other
mammals, on oceanic islands, are mammals, on oceanic islands, are 1859 1860 1861 1866 |
terrestrial mammals, are facts 1869 1872 |
utterly inexplicable on the theory of independent acts of creation. |
|
The existence of closely allied or representative species in any two areas, implies, on the theory of descent with modification, that the same
parents parents 1859 1860 1861 1866 | parent-forms 1869 1872 |
formerly inhabited both
areas; areas; 1859 1860 1861 1866 1869 | areas: 1872 |
and we almost invariably find that wherever many closely allied species inhabit two areas, some identical species
common common 1859 1860 1861 1866 |
are still common 1869 1872 |
to
both both 1859 1860 1861 1866 | both. 1869 1872 |
still still 1859 1860 1861 1866 | still 1869 1872 |
exist there. exist there. 1861 1866 | exist. 1859 1860 | exist there. 1869 1872 |
Wherever many closely allied yet distinct species occur,
many many 1859 1860 1861 | many 1866 1869 1872 |
doubtful forms and varieties
of of 1859 1860 1861 1866 | belonging to 1869 1872 |
the same
species species 1859 1860 1861 1866 | groups 1869 1872 |
likewise likewise 1859 1860 1861 1869 1872 | like-wise 1866 |
occur. It is a rule of high generality that the
|