Origin of Species… • 15. Recapitulation and conclusion (9)

≣  •  D a r w i n  (1 8 5 9,  1 8 7 2⁶)  •  15.  R e c a p i t u l a t i o n  a n d  c o n c l u s i o n  •  √it

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On this doctrine of the extermination of an infinitude of connecting links, between the living and extinct inhabitants of the world, and at each successive period between the extinct and still older species, why is not every geological formation charged with such links? Why does not every collection of fossil remains afford plain evidence of the gradation and mutation of the forms of life? Although geological research has undoubtedly revealed the former existence of many links, bringing numerous forms of life much closer together, it does not yield the infinitely many fine gradations between past and present species required on the theory; and this is the most obvious of the many objections which may be urged against it. Why, again, do whole groups of allied species appear, though this appearance is often false, to have come in suddenly on the successive geological stages? Although we now know that organic beings appeared on this globe, at a period incalculably remote, long before the lowest bed of the Cambrian system was deposited, why do we not find beneath this system great piles of strata stored with the remains of the progenitors of the Cambrian fossils? For on the theory, such strata must somewhere have been deposited at these ancient and utterly unknown epochs of the world’s history.

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[]  C h.  D a r w i n,  ‹T h e  O r i g i n  o f  S p e c i e s›,  J o h n  M u r r a y,  1 8 7 2⁶.
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