Charles Robert Darwin (12 February 1809 – 19 April 1882) was an eminent English naturalist[I] who achieved lasting fame by convincing the scientific community that species develop over time from a common origin. His theories explaining this phenomenon through natural and sexual selection are central to the modern understanding of evolution as the unifying theory of the life sciences, essential in biology and important in other disciplines such as anthropology, psychology and philosophy.
Darwin developed his interest in natural history while studying first medicine, then theology, at university. His five-year voyage on the Beagle established him as a geologist whose observations and theorising supported Charles Lyell's uniformitarian ideas, and the subsequent publication of his journal of the voyage made him famous as a popular author. Puzzled by the geographical distribution of wildlife and fossils he collected on the voyage, he investigated the transmutation of species and conceived his theory of natural selection in 1838. He had seen others attacked for such heretical ideas and confided only in his closest friends while carrying out extensive research to meet anticipated objections. However, in 1858, Alfred Russel Wallace sent him an essay describing a similar theory, forcing early joint publication of both of their theories.
His 1859 book, On the Origin of Species, established evolution by common descent as the dominant scientific explanation of diversification in nature. Human origins and features without obvious utility such as beautiful bird plumage were examined in The Descent of Man, and Selection in Relation to Sex, followed by The Expression of the Emotions in Man and Animals. His research on plants was published in a series of books, and in his final book, he examined earthworms and their effect on soil.
In recognition of Darwin's pre-eminence, he was buried in Westminster Abbey, close to John Herschel and Isaac Newton.
- 1 Life
- 2 Darwin's children
- 3 Religious views
- 4 Political interpretations
- 5 Commemoration
- 6 Works
- 7 See also
- 8 Notes
- 9 Citations
- 10 References
- 11 External links
- For more details on this topic, see Charles Darwin's education.
Charles Darwin was born in Shrewsbury, Shropshire, England on 12 February 1809 at The Mount, the house his father built in 1800 near the River Severn. He was the fifth of six children of wealthy society doctor and financier Robert Darwin, and Susannah Darwin (née Wedgwood). He was the grandson of Erasmus Darwin on his father's side, and of Josiah Wedgwood on his mother's side. Both families were largely Unitarian, though the Wedgwoods were adopting Anglicanism. Robert Darwin, himself quietly a freethinker, made a nod toward convention by having baby Charles baptized in the Anglican church. Nonetheless, Charles and his siblings attended the Unitarian chapel with their mother, and early in 1817, Charles joined the day school run by its preacher. In July of that year, his mother died; he was only eight. From September 1818, he attended the nearby Anglican Shrewsbury School as a boarder.
Darwin spent the summer of 1825 as an apprentice doctor, helping his father treat the poor of Shropshire. In the autumn, he went to the University of Edinburgh to study medicine, but was revolted by the brutality of surgery and neglected his medical studies. He learned taxidermy from John Edmonstone, a freed black slave who told him exciting tales of the South American rainforest. Later, in The Descent of Man, he used this experience as evidence that "Negroes and Europeans" were closely related despite superficial differences in appearance. In Darwin's second year, he joined the Plinian Society, a student group interested in natural history. He became a keen pupil of Robert Edmund Grant, a proponent of Lamarck's theory of evolution by acquired characteristics which had appeared in the writings of Charles' grandfather Erasmus before being developed by Jean-Baptiste Lamarck. On the shores of the Firth of Forth, Darwin joined in Grant's investigations of the life cycle of marine animals. These studies found evidence for homology, the radical theory that all animals have similar organs which differ only in complexity, thus showing common descent. In March 1827, Darwin made a presentation to the Plinian of his own discovery that the black spores often found in oyster shells were the eggs of a skate leech. He also sat in on Robert Jameson's natural history course, learning about stratigraphic geology, receiving training in how to classify plants, and assisting with work on the extensive collections of the Museum of Edinburgh University, one of the largest museums in Europe at the time.
In 1827, his father, unhappy at his younger son's lack of progress, shrewdly enrolled him in a Bachelor of Arts course at Christ's College, University of Cambridge to qualify as a clergyman, expecting him to get a good income as an Anglican parson. However, Darwin preferred riding and shooting to studying. Along with his cousin William Darwin Fox, he became engrossed in the craze at the time for the competitive collecting of beetles, Fox introduced him to the Reverend John Stevens Henslow, professor of botany, for expert advice on beetles. Darwin subsequently joined Henslow's natural history course and became his favourite pupil, known to the dons as "the man who walks with Henslow". Once exams drew near, Darwin focused on his studies and received private instruction from Henslow. Darwin was particularly enthusiastic about the writings of William Paley, including the argument of divine design in nature. In his finals in January 1831, he performed well in theology and, having scraped through in classics, mathematics and physics, came tenth out of a pass list of 178.
Residential requirements kept Darwin at Cambridge until June. Following Henslow's example and advice, he was in no rush to take holy orders. Inspired by Alexander von Humboldt's Personal Narrative, he planned to visit the Madeira Islands with some classmates after graduation to study natural history in the tropics. To prepare himself, Darwin joined the geology course of the Reverend Adam Sedgwick then, in the summer, went with him to assist in mapping strata in Wales. After a fortnight with student friends at Barmouth, he returned home to find a letter from Henslow who had recommended Darwin as a suitable (if unfinished) naturalist for the unpaid position of gentleman's companion to Robert FitzRoy, the captain of HMS Beagle which was to leave in four weeks on an expedition to chart the coastline of South America. His father objected to the planned two-year voyage, regarding it as a waste of time, but was persuaded by his brother-in-law, Josiah Wedgwood, to agree to his son's participation.
Journey on the Beagle
- For more details on this topic, see Second voyage of HMS Beagle.
The Beagle survey took five years, two-thirds of which Darwin spent on land. He carefully noted a rich variety of geological features, fossils and living organisms, and methodically collected an enormous number of specimens, many of them new to science. At intervals during the voyage specimens were sent to Cambridge together with letters about his findings, and established his reputation as a naturalist. His extensive detailed notes showed his gift for theorising and formed the basis for his later work. The journal he originally wrote for his family, published as The Voyage of the Beagle, summarises his findings and provides social, political and anthropological insights into the wide range of people he met, both native and colonial.
While on board the ship, Darwin suffered badly from seasickness. In October 1833, he caught a fever in Argentina, and in July 1834, while returning from the Andes down to Valparaíso, he fell ill and spent a month in bed.
Before they set out, Fitzroy gave Darwin volume one of Charles Lyell's Principles of Geology, which explained landforms as the outcome of gradual processes over huge periods of time.[II] On their first stop ashore at St Jago Darwin found that a white band high in the volcanic rock cliffs consisted of baked coral fragments and shells. This matched Lyell's concept of land slowly rising or falling, giving Darwin a new insight into the geological history of the island which inspired him to think of writing a book on geology. He went on to make many more discoveries. some of them particularly dramatic. He saw stepped plains of shingle and seashells in Patagonia as raised beaches, and after experiencing an earthquake in Chile saw mussel-beds stranded above high tide showing that the land had just been raised. High in the Andes he saw fossil trees that had grown on a sand beach, with seashells nearby. He theorised that coral atolls form on sinking volcanic mountains, and confirmed this when the Beagle surveyed the Cocos (Keeling) Islands.
In South America, Darwin found and excavated rare fossils of gigantic extinct mammals, some in strata which showed no signs of catastrophe or change in climate. A huge skull seemed to him to be related to the African rhinoceros. At first, he thought that fragments of bony armour came from a gigantic armadillo like the small creatures common in the area, but was then misled by Bory de Saint-Vincent's Dictionnaire classique into thinking they belonged to the megatherium fossils he found nearby. He was sent Lyell's second volume which argued against evolutionism and explained species distribution by "centres of creation". Darwin puzzled over all he saw and his ideas went beyond Lyell. In Argentina, he found that two types of rhea had separate but overlapping territories. On the Galápagos Islands, he collected mockingbirds and noted that they were different depending on which island they came from. He also heard that local Spaniards could tell from their appearance which island tortoises originated on, but thought the creatures had been imported by buccaneers. In Australia, the marsupial rat-kangaroo and the platypus seemed so unusual that Darwin thought it was almost as though two distinct Creators had been at work. In Cape Town he and FitzRoy met John Herschel, who had recently written to Lyell about that "mystery of mysteries", the origin of species. When organising his notes on the return journey, Darwin wrote that if his growing suspicions about the mockingbirds and tortoises were correct, "such facts undermine the stability of Species", then cautiously added "would" before "undermine". He later wrote that such facts "seemed to me to throw some light on the origin of species".
Three natives who had been taken from Tierra del Fuego on the Beagle's previous voyage were taken back there to become missionaries. They had become "civilised" in England over the previous two years, yet their relatives appeared to Darwin to be "miserable, degraded savages". A year on, the mission had been abandoned and only Jemmy Button spoke with them to say he preferred his harsh previous way of life and did not want to return to England. As a result of this experience, Darwin came to think that humans were not as far removed from animals as his friends believed, and saw differences as relating to cultural advances towards civilisation rather than being racial. He detested the slavery he saw elsewhere in South America, and was saddened by the effects of European settlement on aborigines in New Zealand and Australia.
Captain FitzRoy was committed to writing the official Narrative of the Beagle voyages, and near the end of the voyage, he read Darwin's diary and asked him to rewrite this Journal to provide the third volume, on natural history.
Growing reputation and inception of theory
- For more details on this topic, see Inception of Darwin's theory.
While Darwin was still on the voyage, Henslow fostered his former pupil's reputation by giving selected naturalists access to the fossil specimens and a pamphlet of Darwin's geological letters. When the Beagle returned on 2 October 1836, Darwin was a celebrity in scientific circles. After visiting his home in Shrewsbury and seeing relatives, Darwin hurried to Cambridge to see Henslow, who advised on finding naturalists available to describe and catalogue the collections, and agreed to take on the botanical specimens. Darwin's father organised investments, enabling his son to be a self-funded gentleman scientist, and an excited Darwin went round the London institutions being fêted and seeking experts to describe the collections. Zoologists had a huge backlog of work, and there was a danger of specimens just being left in storage.
An eager Charles Lyell met Darwin for the first time on 29 October and soon introduced him to the up-and-coming anatomist Richard Owen who had the facilities of the Royal College of Surgeons at his disposal to work on Darwin's fossil bones. Owen's surprising results included gigantic sloths, a hippopotamus-like skull from the extinct rodent toxodon, and armour fragments from a huge extinct armadillo (glyptodon), as Darwin had initially surmised. The fossil creatures were unrelated to African animals, but closely related to living species in South America.
In mid December, Darwin moved to Cambridge to organise work on his collections and rewrite his Journal. He wrote his first paper, showing that the South American landmass was slowly rising, and with Lyell's enthusiastic backing read it to the Geological Society of London on 4 January 1837. On the same day, he presented his mammal and bird specimens to the Zoological Society. The ornithologist John Gould soon revealed that the Galapagos birds that Darwin had thought a mixture of blackbirds, "gross-beaks" and finches, were, in fact, twelve separate species of finches. On 17 February 1837, Darwin was elected to the Council of the Geographical Society, and in his presidential address, Lyell presented Owen's findings on Darwin's fossils, stressing geographical continuity of species as supporting his uniformitarian ideas.
On 6 March 1837, Darwin moved to London to be close to this work, and joined the social whirl around scientists and savants such as Babbage, who thought that God preordained life by natural laws rather than ad hoc miraculous creations. Darwin lived near his freethinking brother Erasmus, who was part of this Whig circle and whose close friend the writer Harriet Martineau promoted the ideas of Thomas Malthus underlying the Whig "Poor Law reforms" aimed at discouraging the poor from breeding beyond available food supplies. John Herschel's question on the origin of species was widely discussed. Medical men including Dr. Gully even joined Grant in endorsing transmutation of species, but to Darwin's scientist friends such radical heresy attacked the divine basis of the social order already under threat from recession and riots.
Gould now revealed that the Galapagos mockingbirds from different islands were separate species, not just varieties, and the "wrens" were yet another species of finches. Darwin had not kept track of which islands the finch specimens were from, but found information from the notes of others on the Beagle, including FitzRoy, who had more carefully recorded their own collections. The zoologist Thomas Bell showed that the Galápagos tortoises were native to the islands. By mid March, Darwin was convinced that creatures arriving in the islands had become altered in some way to form new species on the different islands, and investigated transmutation while noting his speculations in his "Red Notebook" which he had begun on the Beagle. In mid-July, he began his secret "B" notebook on transmutation, and on page 36 wrote "I think" above his first sketch of an evolutionary tree.
Overwork, illness and marriage
As well as launching into this intensive study of transmutation, Darwin became mired in more work. While still rewriting his Journal, he took on editing and publishing the expert reports on his collections, and with Henslow's help obtained a Treasury grant of £1,000 to sponsor this multivolume Zoology of the Voyage of H.M.S. Beagle. He agreed to unrealistic dates for this and for a book on South American Geology supporting Lyell's ideas. Darwin finished writing his Journal around 20 June 1837 just as Queen Victoria came to the throne, but then had its proofs to correct.
Darwin's health suffered from the pressure. On 20 September 1837, he had "palpitations of the heart". On doctor's advice that a month of recuperation was needed, he went to Shrewsbury then on to visit his Wedgwood relatives at Maer Hall, but found them too eager for tales of his travels to give him much rest. His charming, intelligent and rather messy cousin Emma Wedgwood, nine months older than Darwin, was nursing his invalid aunt. His uncle Jos pointed out an area of ground where cinders had disappeared under loam and suggested that this might have been the work of earthworms. This inspired a talk which Darwin gave to the Geological Society on 1 November, the first demonstration of the role of earthworms in soil formation.
William Whewell pushed Darwin to take on the duties of Secretary of the Geological Society. After first declining this extra work, he accepted the post in March 1838. Despite the grind of writing and editing, remarkable progress was made on transmutation. While keeping his developing ideas secret, Darwin took every opportunity to question expert naturalists and, unconventionally, people with practical experience such as farmers and pigeon fanciers. Over time his research drew on information from his relatives and children, the family butler, neighbours, colonists and former shipmates. He included mankind in his speculations from the outset, and on seeing an ape in the zoo on 28 March 1838 noted its child-like behaviour.
The strain told and by June he was being laid up for days on end with stomach problems, headaches and heart symptoms. For the rest of his life, he was repeatedly incapacitated with episodes of stomach pains, vomiting, severe boils, palpitations, trembling and other symptoms, particularly during times of stress, such as when attending meetings or dealing with controversy over his theory. The cause of Darwin's illness was unknown during his lifetime and attempts at treatment had little success. Recent attempts at diagnosis have suggested Chagas disease caught from insect bites in South America, Ménière's disease or various psychological illnesses as possible causes, without any conclusive results.
On 23 June, 1838, he took a break from the pressure of work and went "geologising" in Scotland. He visited Glen Roy in glorious weather to see the parallel "roads", horizontal ledges cut into the hillsides. He thought that these were raised beaches: they were later shown to have been shorelines of a glacial lake.
Fully recuperated, he returned to Shrewsbury in July. Used to jotting down daily notes on animal breeding, he scrawled rambling thoughts about career and prospects on two scraps of paper, one with columns headed "Marry" and "Not Marry". Advantages included "constant companion and a friend in old age ... better than a dog anyhow", against points such as "less money for books" and "terrible loss of time." Having decided in favour, he discussed it with his father then went to visit Emma on 29 July 1838. He did not get around to proposing, but against his father's advice he mentioned his ideas on transmutation.
Continuing his research in London, Darwin's wide reading now included "for amusement" the 6th edition of Malthus's An Essay on the Principle of Population which calculates from the birth rate that human population could double every 25 years, but in practice growth is kept in check by death, disease, wars and famine. Darwin was well prepared to see at once that this also applied to de Candolle's "warring of the species" of plants and the struggle for existence among wildlife, explaining how numbers of a species kept roughly stable. As species always breed beyond available resources, favourable variations would make organisms better at surviving and passing the variations on to their offspring, while unfavourable variations would be lost. This would result in the formation of new species. On 28 September 1838 he noted this insight, describing it as a kind of wedging, forcing adapted structures into gaps in the economy of nature as weaker structures were thrust out. He now had a theory by which to work, and over the following months compared farmers picking the best breeding stock to a Malthusian Nature selecting from variants thrown up by "chance" so that "every part of [every] newly acquired structure is fully practised and perfected", and thought this analogy "the most beautiful part of my theory".
On 11 November, he returned to Maer and proposed to Emma, once more telling her his ideas. She accepted, then in exchanges of loving letters she showed how she valued his openness, but her upbringing as a very devout Anglican led her to express fears that his lapses of faith could endanger her hopes to meet in the afterlife. While he was house-hunting in London, bouts of illness continued and Emma wrote urging him to get some rest, almost prophetically remarking "So don't be ill any more my dear Charley till I can be with you to nurse you." He found what they called "Macaw Cottage" (because of its gaudy interiors) in Gower Street, then moved his "museum" in over Christmas. The marriage was arranged for 24 January 1839, but the Wedgwoods set the date back. On the 24th, Darwin was honoured by being elected as Fellow of the Royal Society.
On 29 January 1839, Darwin and Emma Wedgwood were married at Maer in an Anglican ceremony arranged to suit the Unitarians, then immediately caught the train to London and their new home.
Preparing the theory of natural selection for publication
- For more details on this topic, see Development of Darwin's theory.
Darwin had found the basis of his theory of natural selection, but was aware of how much work was needed to make it credible to his fiercely critical scientific colleagues. As Secretary of the Geological Society at its meeting on 19 December 1838, he saw Owen and Buckland display their hatred of evolution when destroying the reputation of his old Lamarckian teacher Grant. Work on his Beagle findings continued, and as well as consulting animal husbanders he carried out extensive experiments with plants, trying to find evidence answering all the arguments he anticipated when his theory was made public. When FitzRoy's Narrative was published in May 1839, Darwin's Journal and Remarks (The Voyage of the Beagle) as the third volume was such a success that later that year it was published on its own.
Early in 1842, Darwin sent a letter about his ideas to Lyell, who was dismayed that his ally now denied "seeing a beginning to each crop of species". Darwin then wrote a "pencil sketch" of his theory. To escape the pressures of London, the family moved to rural Down House in November. On 11 January 1844 Darwin wrote to his botanist friend Joseph Dalton Hooker about his theory, saying it was like confessing "a murder", but to his relief Hooker thought that "there might have been a gradual change of species" and expressed interest in Darwin's explanation. By July Darwin had expanded his "sketch" into a 230-page "Essay". His fears that his ideas would be dismissed as Lamarckian Radicalism were reawakened by controversy over the anonymous publication in October of Vestiges of the Natural History of Creation which was severely attacked by establishment scientists. However, the book was a best-seller and widened middle-class interest in transmutation, paving the way for Darwin as well as reminding him of the need to answer all difficulties before making his theory public. Darwin completed his third geological book in 1846, and embarked on a huge study of barnacles with the assistance of Hooker. In 1847, Hooker read the "Essay" and sent notes that provided Darwin with the calm critical feedback that he needed, but would not commit himself and questioned Darwin's opposition to continuing acts of Creation.
In an attempt to improve his chronic ill health, Darwin went to a spa in Malvern in 1849. To his surprise, he found that two months of water treatment helped. Then his treasured daughter Annie fell ill, reawakening his fears that his illness might be hereditary. After a long series of crises, she died and Darwin lost all faith in a beneficent God.
Darwin's eight years of work on barnacles (Cirripedia) found "homologies" that supported his theory by showing that slightly changed body parts could serve different functions to meet new conditions. In 1853 it earned him the Royal Society's Royal Medal, and it made his reputation as a biologist. In 1854 he resumed work on his theory of species, and in November realised that divergence in the character of descendants could be explained by them becoming adapted to "diversified places in the economy of nature".
Publication of theory
- For more details on this topic, see Publication of Darwin's theory.
By the Spring of 1856, Darwin was investigating how species spread. Hooker increasingly doubted the traditional view that species were fixed, but their new ally Huxley was firmly against evolution. Lyell was intrigued by Darwin's speculations without realising their extent, and when he read a paper by Wallace on the Introduction of species, he saw similarities with Darwin's thoughts and urged him to publish to establish precedence. Though Darwin saw no threat, he began work on a short paper. He was repeatedly held up by finding answers to difficult questions such as how seeds could travel across seawater, and expanded his plans to a "big book on species" titled Natural Selection. He continued his researches, obtaining information and specimens from naturalists worldwide including Wallace who was working in Borneo. In December 1857, Darwin received a letter from Wallace asking if the book would examine human origins. He responded that he would avoid that subject, "so surrounded with prejudices", while encouraging Wallace's theorising and adding that "I go much further than you."
Darwin's book was half way when, on 18 June 1858, he received a paper from Wallace describing natural selection. Though shocked that he had been "forestalled", Darwin sent it on to Lyell, as requested, and, though Wallace had not asked for publication, offered to send it to any journal that Wallace chose. His family was in crisis with children in the village dying of scarlet fever, and he put matters in the hands of Lyell and Hooker. They agreed on a joint presentation at the Linnean Society on 1 July of On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection; however, Darwin's baby son died of the fever and he was too distraught to attend.
There was little immediate attention to this announcement of the theory; the president of the Linnean left the meeting lamenting that the year had not been marked by any great discoveries. Later, Darwin could only recall one review; Professor Haughton of Dublin claimed that "all that was new in them was false, and what was true was old." Darwin struggled for thirteen months to produce an abstract of his "big book", suffering from ill health but getting constant encouragement from his scientific friends. Lyell arranged to have it published by John Murray.
On the Origin of Species by Means of Natural Selection, or The Preservation of Favoured Races in the Struggle for Life (usually abbreviated to The Origin of Species) proved unexpectedly popular, with the entire stock of 1,250 copies oversubscribed when it went on sale to booksellers on 22 November 1859. In the book, Darwin set out "one long argument" of facts, inferences and consideration of anticipated objections. His only allusion to human evolution was the understatement that "light will be thrown on the origin of man and his history". He avoided the then controversial term "evolution", but at the end of the book concluded that "endless forms most beautiful and most wonderful have been, and are being, evolved." His theory is simply stated in the introduction:
As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being, if it vary however slightly in any manner profitable to itself, under the complex and sometimes varying conditions of life, will have a better chance of surviving, and thus be naturally selected. From the strong principle of inheritance, any selected variety will tend to propagate its new and modified form.
Reaction to the publication
- For more details on this topic, see Reaction to Darwin's theory.
There was wide public interest in Darwin's book and a controversy which he monitored closely, keeping press cuttings of reviews, articles, satires, parodies and caricatures. Critical reviewers were quick to pick out the unstated implications of "men from monkeys", while amongst favourable responses Huxley's reviews included swipes at Richard Owen, leader of the scientific establishment Huxley was trying to overthrow. Owen's verdict was unknown until his April review condemned the book.
The Church of England scientific establishment including Darwin's old Cambridge tutors Sedgwick and Henslow reacted against the book, though it was well received by a younger generation of professional naturalists. In 1860, the publication of Essays and Reviews by seven liberal Anglican theologians diverted clerical attention away from Darwin. An explanation of higher criticism and other heresies, it included the argument that miracles broke God's laws, so belief in them was atheistic—and praise for "Mr Darwin's masterly volume [supporting] the grand principle of the self-evolving powers of nature".
The most famous confrontation took place at a meeting of the British Association for the Advancement of Science in Oxford. Professor John William Draper delivered a long lecture about Darwin and social progress, then Samuel Wilberforce, the Bishop of Oxford, argued against Darwin. In the ensuing debate Joseph Hooker argued strongly for Darwin and Thomas Huxley established himself as "Darwin's bulldog" – the fiercest defender of evolutionary theory on the Victorian stage. Both sides came away feeling victorious, but Huxley went on to make much of his claim that on being asked by Wilberforce whether he was descended from monkeys on his grandfather's side or his grandmother's side, Huxley muttered: "The Lord has delivered him into my hands" and replied that he "would rather be descended from an ape than from a cultivated man who used his gifts of culture and eloquence in the service of prejudice and falsehood".
Darwin's illness kept him away from the public debates, though he read eagerly about them and mustered support through correspondence. Asa Gray persuaded a publisher in the United States to pay royalties, and Darwin imported and distributed Gray's pamphlet Natural Selection is not inconsistent with Natural Theology. In Britain, friends including Hooker and Lyell took part in the scientific debates which Huxley pugnaciously led to overturn the dominance of clergymen and aristocratic amateurs under Owen in favour of a new generation of professional scientists. Owen made the mistake of (wrongly) claiming certain anatomical differences between ape and human brains, and accusing Huxley of advocating "Ape Origin of Man". Huxley gladly did just that, and his campaign over two years was devastatingly successful in ousting Owen and the "old guard". Darwin's friends formed The X Club and helped to gain him the honour of the Royal Society's Copley Medal in 1864.
Broader public interest had already been stimulated by Vestiges, and the Origin of Species was translated into many languages and went through numerous reprints, becoming a staple scientific text accessible both to a newly curious middle class and to "working men" who flocked to Huxley's lectures. Darwin's theory also resonated with various movements at the time[III] and became a key fixture of popular culture.[IV]
Descent of Man, sexual selection and botany
- More detailed articles cover Darwin's life from Orchids to Variation, from Descent of Man to Emotions and from Insectivorous plants to Worms
Despite repeated bouts of illness during the last twenty-two years of his life, Darwin pressed on with his work. He had published an abstract of his theory, but more controversial aspects of his "big book" were still incomplete, including explicit evidence of humankind's descent from earlier animals, and exploration of possible causes underlying the development of society and of human mental abilities. He had yet to explain features with no obvious utility other than decorative beauty. His experiments, research and writing continued.
When Darwin's daughter fell ill, he set aside his experiments with seedlings and domestic animals to accompany her to a seaside resort where he became interested in wild orchids. This developed into an innovative study of how their beautiful flowers served to control insect pollination and ensure cross fertilisation. As with the barnacles, homologous parts served different functions in different species. Back at home, he lay on his sickbed in a room filled with experiments on climbing plants. He was visited by a reverent Ernst Haeckel who had spread the gospel of Darwinismus in Germany. Wallace remained supportive, though he increasingly turned to spiritualism.
Variation of Plants and Animals Under Domestication, the first part of Darwin's planned "big book" (expanding on his "abstract" published as The Origin of Species) grew to two huge volumes, forcing him to leave out human evolution and sexual selection, and sold briskly despite its size. A further book of evidences, dealing with natural selection in the same style, was largely written, but was not published until 1975.
The question of human evolution had been taken up by his supporters (and detractors) shortly after the publication of The Origin of Species, but Darwin's own contribution to the subject came more than ten years later with the two-volume The Descent of Man, and Selection in Relation to Sex published in 1871. In the second volume, Darwin introduced in full his concept of sexual selection to explain the evolution of human culture, the differences between the human sexes, and the differentiation of human races, as well as the beautiful (and seemingly non-adaptive) plumage of birds. A year later Darwin published his last major work, The Expression of the Emotions in Man and Animals, which focused on the evolution of human psychology and its continuity with to the behaviour of animals. He developed his ideas that the human mind and cultures were developed by natural and sexual selection, an approach which has been revived in the last three decades with the emergence of evolutionary psychology. As he concluded in Descent of Man, Darwin felt that, despite all of humankind's "noble qualities" and "exalted powers": "Man still bears in his bodily frame the indelible stamp of his lowly origin."
His evolution-related experiments and investigations culminated in five books on plants, and then, in his last book, he returned to the effect earthworms have on soil formation. He died in Downe, Kent, England, on 19 April 1882. He had expected to be buried in St Mary's churchyard at Downe, but, at the request of Darwin's colleagues, William Spottiswoode (President of the Royal Society) arranged for Darwin to be given a state funeral and buried in Westminster Abbey, close to John Herschel and Isaac Newton.
|William Erasmus Darwin||(27 December 1839–1914)|
|Anne Elizabeth Darwin||(2 March 1841–22 April 1851)|
|Mary Eleanor Darwin||(23 September 1842–16 October 1842)|
|Henrietta Emma "Etty" Darwin||(25 September 1843–1929)|
|George Howard Darwin||(9 July 1845–7 December 1912)|
|Elizabeth "Bessy" Darwin||(8 July 1847–1926)|
|Francis Darwin||(6 August 1848–19 September 1925)|
|Leonard Darwin||(15 January 1850–26 March 1943)|
|Horace Darwin||(13 May 1851–29 September 1928)|
|Charles Waring Darwin||(6 December 1856–28 June 1858)|
The Darwins had ten children; two died in infancy, and Annie's death at the age of ten had a devastating effect on her parents. Charles was a devoted father and uncommonly attentive to his children. Whenever they fell ill he feared that they might have inherited weaknesses from inbreeding due to the close family ties he shared with his wife and cousin, Emma Wedgwood. He examined this topic in his writings, contrasting it with the advantages of crossing amongst many organisms. Despite his fears, most of the surviving children went on to have distinguished careers as notable members of the prominent Darwin — Wedgwood family.
Of his surviving children, three became Fellows of the Royal Society - these were George, Francis and Horace, distinguished as astronomer, botanist and civil engineer, respectively. His son Leonard, on the other hand, went on to be a soldier, politician, economist, eugenicist and mentor of the statistician and evolutionary biologist Ronald Fisher.
- For more details on this topic, see Charles Darwin's views on religion.
Though Charles Darwin's family background was Nonconformist, and his father, grandfather and brother were Freethinkers, at first he did not doubt the literal truth of the Bible. He attended a Church of England school, then at Cambridge studied Anglican theology to become a clergyman. He was convinced by William Paley's teleological argument that design in nature proved the existence of God, but during the Beagle voyage he questioned, for example, why beautiful deep-ocean creatures had been created where no one could see them, or how the ichneumon wasp paralysing caterpillars as live food for its eggs could be reconciled with Paley's vision of beneficent design. He was still quite orthodox and would quote the Bible as an authority on morality, but did not trust the history in the Old Testament.
When investigating transmutation of species he knew that his naturalist friends thought this a bestial heresy undermining miraculous justifications for the social order, the kind of radical argument then being used by Dissenters and atheists to attack the Church of England's privileged position as the established church. Though Darwin even wrote of religion as a tribal survival strategy, he still believed that God was the ultimate lawgiver. His belief dwindled, and with the death of his daughter Annie in 1851 Darwin finally lost all faith in Christianity. He continued to help the local church with parish work, but on Sundays would go for a walk while his family attended church. He now thought it better to look at pain and suffering as the result of general laws rather than direct intervention by God. When asked about his religious views, he wrote that he had never been an atheist in the sense of denying the existence of a God, and that generally "an Agnostic would be the more correct description of my state of mind."
The "Lady Hope Story", published in 1915, claimed that Darwin had converted to Christianity on his sickbed. The claims were refuted by Darwin's children and have been dismissed as false by historians. His daughter, Henrietta, who was at his deathbed, said that he did not convert to Christianity. His last words were, in fact, directed at Emma: "Remember what a good wife you have been."
Darwin's theories and writings, combined with Gregor Mendel's genetics, (the "modern synthesis") form the basis of all modern biology. However, Darwin's fame and popularity led to his name being associated with ideas and movements which at times had only an indirect relation to his writings, and sometimes went directly against his express comments.
Following Darwin's publication of the Origin, his cousin, Francis Galton, applied the concepts to human society, starting in 1865 with ideas to promote "hereditary improvement" which he elaborated at length in 1869. In The Descent of Man Darwin agreed that Galton had demonstrated the probability that "talent" and "genius" in humans was inherited, but dismissed the social changes Galton proposed as too utopian. Neither Galton nor Darwin supported government intervention and instead believed that, at most, heredity should be taken into consideration by people seeking potential mates. In 1883, after Darwin's death, Galton began calling his social philosophy Eugenics. In the twentieth century, eugenics movements gained popularity in a number of countries and became associated with reproduction control programmes such as compulsory sterilisation laws, then were stigmatised after their usage in the rhetoric of Nazi Germany in its goals of genetic "purity".[V]
The ideas of Thomas Malthus and Herbert Spencer which applied ideas of evolution and "survival of the fittest" to societies, nations and businesses became popular in the late 19th and early 20th century, and were used to defend various, sometimes contradictory, ideological perspectives including laissez-faire economics, colonialism, racism and imperialism. The term, "Social Darwinism", originated around the 1890s, but became popular as a derogatory term in the 1940s with Richard Hofstadter's critique of laissez-faire conservatism. The concepts predate Darwin's publication of the Origin in 1859: Malthus died in 1834 and Spencer published his books on economics in 1851 and on evolution in 1855. Darwin himself insisted that social policy should not simply be guided by concepts of struggle and selection in nature, and that sympathy should be extended to all races and nations.[VI]
During Darwin's lifetime many species and geographical features were given his name. An expanse of water adjoining the Beagle Channel was named Darwin Sound by Robert FitzRoy after Darwin's prompt action saved them from being marooned on a nearby shore when a collapsing glacier caused a large wave that would have swept away their boats, and the nearby Mount Darwin in the Andes was named in celebration of Darwin's 25th birthday. When the Beagle was surveying Australia in 1839, Darwin's friend John Lort Stokes sighted a natural harbour which the ship's captain Wickham named Port Darwin. The settlement of Palmerston founded there in 1869 was officially renamed Darwin in 1911. It became the capital city of Australia's Northern Territory, which also boasts Charles Darwin University and Charles Darwin National Park.
The 14 species of finches he collected in the Galápagos Islands are affectionately named "Darwin's Finches" in honour of his legacy. Darwin College, Cambridge, founded in 1964, was named in honour of the Darwin family, partially because they owned some of the land it was on. In 1992, Darwin was ranked #16 on Michael H. Hart's list of the most influential figures in history. Darwin came fourth in the 100 Greatest Britons poll sponsored by the BBC and voted for by the public. In 2000 Darwin's image appeared on the Bank of England ten pound note, replacing Charles Dickens. His impressive, luxuriant beard (which was reportedly difficult to forge) was said to be a contributory factor to the bank's choice.
As a humorous celebration of evolution, the annual Darwin Award is bestowed on individuals who "improve our gene pool by removing themselves from it."
Darwin has been the subject of many exhibitions, including the "Darwin" exhibition organised by the American Museum of Natural History in New York City in 2006 and shown in various cities in the US.
- Free editions of Darwin's publications online
- Darwin Online: Table of Contents (Complete bibliography of works, including alternative editions, contributions to books & periodicals, correspondence & life) Free to read, but not Public Domain, and includes work still under Copyright.
- Published works
- 1835: Extracts from letters to Professor Henslow (privately printed, not for public sale)
- 1836: A LETTER, Containing Remarks on the Moral State of TAHITI, NEW ZEALAND, &c. – BY CAPT. R. FITZROY AND C. DARWIN, ESQ. OF H.M.S. 'Beagle.'
- 1839: Journal and Remarks (The Voyage of the Beagle)
- Zoology of the Voyage of H.M.S. Beagle: published between 1839 and 1843 in five volumes by various authors, edited and superintended by Charles Darwin, who contributed sections to two of the volumes:
- 1840: Part I. Fossil Mammalia, by Richard Owen (Darwin's introduction)
- 1839: Part II. Mammalia, by George R. Waterhouse (Darwin on habits and ranges)
- 1842: The Structure and Distribution of Coral Reefs
- 1844: Geological Observations of Volcanic Islands
- 1846: Geological Observations on South America
- 1849: Geology from A Manual of scientific enquiry; prepared for the use of Her Majesty's Navy: and adapted for travellers in general., John F.W. Herschel ed.
- 1851: A Monograph of the Sub-class Cirripedia, with Figures of all the Species. The Lepadidae; or, Pedunculated Cirripedes.
- 1851: A Monograph on the Fossil Lepadidae; or, Pedunculated Cirripedes of Great Britain
- 1854: A Monograph of the Sub-class Cirripedia, with Figures of all the Species. The Balanidae (or Sessile Cirripedes); the Verrucidae, etc.
- 1854: A Monograph on the Fossil Balanidæ and Verrucidæ of Great Britain
- 1858: On the Perpetuation of Varieties and Species by Natural Means of Selection
- 1859: On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life
- 1862: On the various contrivances by which British and foreign orchids are fertilised by insects
- 1868: Variation of Plants and Animals Under Domestication
- 1871: The Descent of Man, and Selection in Relation to Sex
- 1872: The Expression of Emotions in Man and Animals
- 1875: Movement and Habits of Climbing Plants
- 1875: Insectivorous Plants
- 1876: The Effects of Cross and Self-Fertilisation in the Vegetable Kingdom
- 1877: The Different Forms of Flowers on Plants of the Same Species
- 1879: "Preface and 'a preliminary notice'" in Ernst Krause's Erasmus Darwin
- 1880: The Power of Movement in Plants
- 1881: The Formation of Vegetable Mould Through the Action of Worms
- 1887: Autobiography of Charles Darwin (Edited by his son Francis Darwin)
- 1958: Autobiography of Charles Darwin (Barlow, unexpurgated)
- Correspondence of Charles Darwin
- 1887: Life and Letters of Charles Darwin, (ed. Francis Darwin)
- 1903: More Letters of Charles Darwin, (ed. Francis Darwin and A.C. Seward)
- Darwin's Frog – a species of frog named after Charles Darwin.
- Descent with modification
- Harriet – a Galápagos tortoise, possibly collected by Darwin; died 23 June 2006 at an estimated age of 175.
- Patrick Matthew – an amateur evolutionary theorist and contemporary of Darwin.
- Randal Keynes – the great-great grandson of Charles Darwin who wrote a book about him, his daughter, and human evolution
- The Tree of Life – an excerpt from the Origin of Species
II. ^ Robert FitzRoy was to become known after the voyage for biblical literalism, but at this time he had considerable interest in Lyell's ideas, and they met before the voyage when Lyell asked for observations to be made in South America. FitzRoy's diary during the ascent of the River Santa Cruz in Patagonia recorded his opinion that the plains were raised beaches, but on return, newly married to a very religious lady, he recanted these ideas.
III. ^ See, for example, WILLA volume 4, Charlotte Perkins Gilman and the Feminization of Education by Deborah M. De Simone: "Gilman shared many basic educational ideas with the generation of thinkers who matured during the period of "intellectual chaos" caused by Darwin's Origin of the Species. Marked by the belief that individuals can direct human and social evolution, many progressives came to view education as the panacea for advancing social progress and for solving such problems as urbanization, poverty, or immigration."
IV. ^ See, for example, the song "A lady fair of lineage high" from Gilbert and Sullivan's Princess Ida, which describes the descent of man (but not woman!) from apes.
V. ^ The Nazi eugenics policies are discussed in a number of sources. A few of the more definitive ones are Robert Proctor, Racial hygiene: Medicine under the Nazis (Cambridge, MA: Harvard University Press, 1988) and Dieter Kuntz, ed., Deadly medicine: creating the master race (Washington, DC: United States Holocaust Memorial Museum, 2004) (online exhibit). On the development of the racial hygiene movement before National Socialism, see Paul Weindling, Health, race and German politics between national unification and Nazism, 1870-1945 (New York: Cambridge University Press, 1989).
- [E]arly in the voyage at Bahia, in Brazil, [FitzRoy] defended and praised slavery, which I abominated, and told me that he had just visited a great slave-owner, who had called up many of his slaves and asked them whether they were happy, and whether they wished to be free, and all answered "No." I then asked him, perhaps with a sneer, whether he thought that the answer of slaves in the presence of their master was worth anything? This made him excessively angry, and he said that as I doubted his word we could not live any longer together.
- It seems yet wonderful to me, when I think over all his many good qualities, that he should have been of the same race, and doubtless partaken of the same character, with the miserable, degraded savages whom we first met here.
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Moore & Desmond 2004
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<ref>tag; name "SocialDarwinismThinkQuest" defined multiple times with different content
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|Education | Voyage on HMS Beagle | Inception of theory | Development of theory | Publication of theory | Reaction to theory|
Orchids to Variation | Descent of Man to Emotions | Insectivorous plants to Worms
|Darwin's family, beliefs and health|
|Darwin — Wedgwood family | Views on religion | Illness|
|The Voyage of the Beagle | On the Tendency of Species to form Varieties | The Origin of Species|
The Descent of Man, and Selection in Relation to Sex | The Expression of the Emotions in Man and Animals
Basic topics in evolutionary biology
|Evidence of evolution|
|Processes of evolution: adaptation - macroevolution - microevolution - speciation|
|Population genetic mechanisms: selection - genetic drift - gene flow - mutation|
|Evo-devo concepts: phenotypic plasticity - canalisation - modularity|
|Modes of evolution: anagenesis - catagenesis - cladogenesis|
|History: History of evolutionary thought - Charles Darwin - The Origin of Species - modern evolutionary synthesis|
|Other subfields: ecological genetics - human evolution - molecular evolution - phylogenetics - systematics|
|List of evolutionary biology topics | Timeline of evolution|
|NAME||Darwin, Charles Robert|
|SHORT DESCRIPTION||English naturalist, evolutionary biologist|
|DATE OF BIRTH||February 12, 1809|
|PLACE OF BIRTH||Mount House, Shrewsbury, Shropshire, England|
|DATE OF DEATH||April 19, 1892|
|PLACE OF DEATH||Down House, Downe, Kent, England|
|This page uses content from Wikipedia. The original article was at Charles_Darwin. The list of authors can be seen in the page history. As with Paleontology Wiki, the text of Wikipedia is available under the GNU Free Documentation License.|