| → inheritance, and to having already 1859 1860 1861 |
| inheritance and to having already 1866 |
| their having 1869 1872 |
|
| → parents or 1859 1860 1861 1866 |
| already dominant parents, as well as 1869 1872 |
|
| → new species. 1859 1860 1861 |
| other new forms. 1866 |
| new forms. 1869 1872 |
|
| → in both ways will 1859 1860 1861 |
| will 1866 |
| OMIT 1869 1872 |
|
| → correspond. 1859 1860 1861 |
| correspond in their first appearance and final disappearance. 1866 |
| correspond both in their first appearance and final disappearance. 1869 1872 |
|
| → were 1859 1860 |
| rich in fossils, were 1861 1866 1869 1872 |
|
| → occurred 1859 1860 1861 1866 |
| as far as fossils are concerned, occurred 1869 1872 |
|
|
forms dominant in the highest degree, wherever produced, would tend everywhere to prevail. As they prevailed, they would cause the extinction of other and inferior forms; and as these inferior forms would be allied in groups by inheritance, whole groups would tend slowly to disappear; though here and there a single member might long be enabled to survive. |
|
| Thus, as it seems to me, the parallel, and, taken in a large sense, simultaneous, succession of the same forms of life throughout the world, accords well with the principle of new species having been formed by dominant species spreading widely and varying; the new species thus produced being themselves
owing to
→inheritance, and to having already
had some advantage over their
→parents or
over other
again spreading, varying, and producing
→new species. The
which are beaten and which yield their places to the new and victorious forms, will generally be allied in groups, from inheriting some inferiority in common; and
as new and improved groups spread throughout the world, old groups
disappear from the world; and the succession of forms
→in both ways will
everywhere
to
→correspond.
|
|
| There is one other remark connected with this subject worth making. I have given my reasons for believing that
our
→were
deposited during periods of subsidence; and that blank intervals of vast
→occurred
during the periods when the bed of the sea was either stationary or rising, and likewise when sediment was not thrown down quickly enough to embed and preserve organic remains. During these long and blank intervals I suppose that the inhabitants of each region underwent a considerable amount of modification and extinction, and that there was much migration from
|
