Keenly observing nature in all its forms—from fossil sloths to mockingbirds, primroses to children—Darwin saw that we all are related.Every living thing shares an ancestry, he concluded, and the vast diversity of life on Earth results from processes at work over millions of years and still at work today.
The theory of natural selection, it is said, could only have originated in England, because only laissezfaire England provided the atomistic, egotistic mentality necessary to its conception. Believe me, dear Henslow, Yours affectionately obliged | Charles Darwin Henslow did not print excerpts from this letter, probably because it had not yet arrived when the Cambridge Philosophical Society pamphlet was published early in December 1835.CD’s letter to Caroline, also written in August, has a postmark, ‘Shrewsbury JA 4 1836’.Darwin's explanation for this great unfolding of life through time—the theory of evolution by natural selection—transformed our understanding of the living world, much as the ideas of Galileo, Newton, and Einstein revolutionized our understanding of the physical universe.Darwin's theory of evolution by natural selection underlies all modern biology..— I look forward with joy & interest to this, both as being somewhat nearer to England, & for the sake of having a good look at an active Volcano.— Although we have seen Lava in abundance, I have never yet beheld the Crater.— I sent by H. Now the alternations of Lava & coarse sediment, which form the upper parts of the Andes, correspond exactly to what would accumulate under such circumstances. C.—to know quartz from Feldspar—before I indulge in such speculations.— I lately got hold of 〈 〉 report on M. I hope to be able to connect his Geology of that country, with mine of Chili.— After leaving Copiapò, we touched at Iquique.
The formation was produced at the time, when In the central parts of Chili, the structure of the lower beds are rendered very obscure by the Metamorphic action, which has rendered even the coarsest Conglomerates, porphyritic.— The Cordilleras of the Andes so worthy of admiration from the grandeur of their dimensions, to rise in dignity when it is considered that since the period of Ammonites, they have formed a marked feature in the Geography of the Globe.— The geology of these Mountains pleased me in one respect; when reading Lyell, it had always struck me that if the crust of the world goes on changing in a Circle, there ought to be somewhere found formations which having the of Tertiary rocks, or those formed amidst Islands & in limited Basins. I experienced rather a debasing degree of vexation to find he has described the geology of the Pampas, & that I have had some hard riding for nothing; it was however gratifying that my conclusions are the same, as far as I can collect, with his results.— It is also capital, that the whole of Bolivia will be described.
It enables us to decipher our genes and fight viruses, and to understand Earth's fossil record and rich biodiversity.
Simple yet at times controversial, misunderstood and misused for social goals, the theory remains unchallenged as the central concept of biology.
Only there could Darwin have blandly assumed that the basic unit was the individual, the basic instinct selfinterest, and the basic activity struggle.
Spengler, describing the as: "the application of economics to biology," said that it reeked of the atmosphere of the English factory .
of Good Hope Your letters besides affording me the greatest delight, always give me a fresh stimulus for exertion.