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Darwin's theory of evolution is based on key facts and the inferences drawn from them, which biologist Ernst Mayr summarised as follows: [6] Every species is fertile enough that if all offspring survived to reproduce, the population would grow (fact). Despite periodic fluctuations, populations remain roughly the same size (fact).
The Reverend Leonard Jenyns, a naturalist Darwin had known since his time at the University of Cambridge, had at Darwin's request contributed the volume on Fish in Zoology of the Voyage of H.M.S. Beagle, and was now working on a book of notes on observations of plants and animals. On 12 October Darwin wrote to tell him that "work on the species ...
Darwin's ideas developed rapidly after returning from the Voyage of the Beagle in 1836. By December 1838, he had developed the basic principles of his theory. At that time, ideas about the transmutation of species were associated with radical political ideas of the Age of Enlightenment and the French Revolution, and some people, such as Darwin's old instructor Robert Edmond Grant had been ...
The publication of Darwin's theory brought into the open Charles Darwin's theory of evolution through natural selection, the culmination of more than twenty years of work. Thoughts on the possibility of transmutation of species which he recorded in 1836 towards the end of his five-year voyage on the Beagle were followed on his return by ...
Objections to evolution have been raised since evolutionary ideas came to prominence in the 19th century. When Charles Darwin published his 1859 book On the Origin of Species, his theory of evolution (the idea that species arose through descent with modification from a single common ancestor in a process driven by natural selection) initially met opposition from scientists with different ...
Worms became available in October 1881 and sold thousands of copies in its first few weeks, despite Darwin's comment to Carus that it was "a small book of little moment". [15] Darwin received a "laughable" number of letters containing questions, observations and ideas, even "idiotic" ones. A week's holiday with Emma in Cambridge was to follow.
Wallace collected specimens and corresponded with Darwin from Borneo. In December 1857, he wrote to ask if Darwin's book would delve into human origins, to which Darwin responded that "I think I shall avoid the whole subject, as so surrounded with prejudices, though I fully admit that it is the highest & most interesting problem for the ...
Charles Robert Darwin (/ ˈ d ɑːr w ɪ n / [5] DAR-win; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, [6] widely known for his contributions to evolutionary biology.