Origin of Species Variorum

→ belonging to large and 1869 1872

of the larger 1859 1860 1861 1866

→ has sometimes been a 1866 1869 1872

may often be a very 1859 1860 1861

→ OMIT 1869

spreading of the 1859 1860 1861 1866

→ which spread widely and yield the greatest number of varieties will 1869

of life, which are those that oftenest vary, will in the long run 1859 1860 1861 1866

→ groups 1869

places of those groups of species 1859 1860 1861 1866

→ all the forms of life, ancient and recent, make together a few grand classes; for all are at least thus far connected by generation. 1869

all the forms of life, ancient and recent, make together one grand system; for all are connected by generation. 1859 1860 1861 1866

dominant forms which spread widely and yield the greatest number of varieties tend to people the world with allied, but modified, descendants; and these will generally succeed in displacing the groups which are their inferiors in the struggle for existence. 1872

↑ 1 blocks not present in 1859 1860 1861 1866 1869; present in 1872

Hence, after long intervals of time, the productions of the world will appear to have changed simultaneously.

→ from 1859 1860 1861 1866 1869

how it is that all the forms of life, ancient and recent, make together a few grand classes. We can understand, from 1872

→ living; 1869 1872

living. 1859 1860 1861

living; why ancient and extinct forms often tend to fill up gaps between existing forms, sometimes blending two groups previously classed as distinct into one; but more commonly only bringing them a little closer together. 1866

→ bringing them only 1869 1872

only bringing them 1859 1860 1861

increase in numbers slowly, and endure for unequal periods of time; for the process of modification is necessarily slow, and depends on many complex contingencies. The dominant species →belonging to large and dominant groups tend to leave many modified descendants,

and thus

which form

new sub-groups and

groups

groups.

are

....

formed.

....

As these are formed, the species of the less vigorous groups, from their inferiority inherited from a common progenitor, tend to become extinct together, and to leave no modified offspring on the face of the earth. But the utter extinction of a whole group of species →has sometimes been a slow process, from the survival of a few descendants, lingering in protected and isolated situations. When a group has once wholly disappeared, it does not reappear; for the link of generation has been broken.

We can understand how the →OMIT dominant forms →which spread widely and yield the greatest number of varieties will tend to people the world with allied, but modified, descendants; and these will generally succeed in

taking

displacing

the →groups which are their inferiors in the struggle for existence. Hence, after long intervals of time, the productions of the world

will

....

appear to have changed

simultaneously. &

simultaneously.

We can understand how it is that →all the forms of life, ancient and recent, make together a few grand classes; for all are at least thus far connected by generation. ↑ We can

understand

understand,

→from the continued tendency to divergence of character, why the more ancient a form is, the more it generally differs from those now →living;

Why

why

ancient and extinct forms often tend to fill up gaps between existing forms, sometimes blending two

groups

groups,

previ- ously

previously

classed as

distinct

distinct,

into one; but more commonly →bringing them only a little closer together. The more ancient a form is, the more

often,

often