It has long been known that one of the most effective popularizers of evolution fudged some drawings, but only now has the breathtaking extent of his deceit been revealed.
Most people have heard of or been taught the idea that the human embryo goes through (or recapitulates) various evolutionary stages, such as having gills like a fish, a tail like a monkey, etc., during the first few months that it develops in the womb.
The idea has not only been presented to generations of biology/medical students as fact, but has also been used for many years to persuasively justify abortion. Abortionists claimed that the unborn child being killed was still in the fish stage or the monkey stage, and had not yet become a human being.
This idea (called embryonic recapitulation) was vigorously expounded by Ernst Haeckel from the late 1860s to promote Darwin’s theory of evolution in Germany, even though Haeckel did not have evidence to support his views.1
Lacking the evidence, Haeckel set out to manufacture the data. He fraudulently changed drawings made by other scientists of human and dog embryos, to increase the resemblance between them and to hide the dissimilarities. We reported on this particular fraud in a recent issue of Creation magazine.2
Haeckel’s German peers (notably, in 1874, Wilhelm His Sr, professor of anatomy at the University of Leipzig) were aware of this fraud and extracted a modest confession from him, in which he blamed the draughtsman for blundering—without acknowledging that he himself was the draughtsman!2
Most informed evolutionists in the past 70 years have realised that the recapitulation theory is false.3
Nevertheless, the recapitulation idea is still advanced as evidence for the theory of evolution in many books and particularly encyclopedias and by evolutionary popularizers like the late Carl Sagan.4
But wait—there’s more
When evolutionists say that the recapitulation theory is false, they usually do not mean to admit that comparing embryos gives no evidence of common ancestry. In fact, they still frequently highlight the assumed similarities between embryos in their early stages (called embryonic homology) as evidence for evolution. This assumption is based on the idea that such similarities are ‘common knowledge’.5
This alleged similarity of embryos has for years been resting, consciously or unconsciously, on a set of 24 of Haeckel’s drawings which he first published in 1866 in his Generalle Morphologie der Organismen, and then repeated in 1874 in his more popular Anthropogenie (see below). These purport to show embryos of fish, salamander, turtle, chicken, pig, cow, rabbit, and human in three stages of development.
The various stages, particularly the earlier ones, show substantial similarity. Ever since these drawings appeared, it has been assumed that they have given us something close to the truth about embryos of vertebrate species. So much so that they still appear in textbooks and popular works on evolution.6,7
In fact, no one has bothered to check—until now. It turns out that Haeckel’s fraud was much worse than anyone realised. It did not just affect the idea of recapitulation, it turns out that the similarities are much, much less than anyone thought.
Fraud examined and exposed
Michael Richardson, a lecturer and embryologist at St George’s Hospital Medical School, London, has exposed this further fraud, in an article in the journal Anatomy and Embryology,8 recently reviewed in Science9 and New Scientist.10
Richardson says he always felt there was something wrong with Haeckel’s drawings, ‘because they didn’t square with his [Richardson’s] understanding of the rates at which fish, reptiles, birds, and mammals develop their distinctive features’.8 He could find no record of anyone having actually compared embryos of one species with those of another, so that ‘no one has cited any comparative data in support of the idea’.8
He therefore assembled an international team to do just that—examine and photograph ‘the external form of embryos from a wide range of vertebrate species, at a stage comparable to that depicted by Haeckel’.8
The team collected embryos of 39 different creatures, including marsupials from Australia, tree-frogs from Puerto Rico, snakes from France, and an alligator embryo from England. They found that the embryos of different species are very different. In fact, they are so different that the drawings made by Haeckel (of similar-looking human, rabbit, salamander, fish, chicken, etc. embryos) could not possibly have been done from real specimens.
Nigel Hawkes interviewed Richardson for The Times (London).11 In an article describing Haeckel as ‘An embryonic liar’, he quotes Richardson:
‘This is one of the worst cases of scientific fraud. It’s shocking to find that somebody one thought was a great scientist was deliberately misleading. It makes me angry … What he [Haeckel] did was to take a human embryo and copy it, pretending that the salamander and the pig and all the others looked the same at the same stage of development. They don’t … These are fakes.’ 11
Haeckel not only changed the drawings by adding, omitting, and changing features but, according to Richardson and his team,
‘he also fudged the scale to exaggerate similarities among species, even when there were 10-fold differences in size. Haeckel further blurred differences by neglecting to name the species in most cases, as if one representative was accurate for an entire group of animals’.9
Ernst Haeckel’s drawings were declared fraudulent by Professor His in 1874 and were included in Haeckel’s quasi confession, but according to Richardson,
Will there now be a rush by libraries, publishers and sellers of evolutionist books to withdraw from circulation, rewrite and otherwise acknowledge the fact that the idea of embryonic similarities’ suggesting evolution is largely based on academic fraud?
References and notes
- The superficial resemblance of various embryos to one another had attracted the attention of zoologists before Haeckel, including J.F. Meckel (1781–1883), M.H. Rathke (1793–1860), and Etienne R.A. Serres (1786–1868) who theorised that embryos of higher animals pass through stages comparable to adults of lower animals, and K. von Baer (1792–1876) who was a creationist and opposed this view as well as vigorously opposing Darwinism (Encyclopaedia Britannica 1:789, 1992). It was Haeckel who popularised the idea with his catchy phrase ‘ontogeny recapitulates phylogeny’ (meaning that the development of the human embryo in the womb is a rerun of the steps in man’s alleged evolutionary rise from a primitive creature). Return to text.
- R. Grigg, ‘Ernst Haeckel: Evangelist for evolution and apostle of deceit ’, Creation 18(2):33–36, 1996. Return to text.
- E.g. evolutionist Stephen J. Gould has said, ‘Both the theory [of recapitulation] and “ladder approach”? to classification that it encouraged are, or should be, defunct today.’ Dr Down’s Syndrome, Natural History 89:144, April 1980, cited from Henry Morris, The Long War Against God, Baker Book House, Michigan, p. 139, 1989. Return to text.
- E.g, World Book Encylopedia 6:409–410, 1994; Collier’s Encyclopedia, 1994, 2:138, 1994; Carl Sagan, The Dragons of Eden, Book Club Associates, London, pp. 57–58, 1977. Return to text.
- Creationists have for many years pointed out that similarity does not prove common ancestry, but can equally well arise from common design, common pathways for engineering efficiency, etc. See DNA Similarity of Humans and Chimps—does it prove common ancestry? Return to text.
- E.g. Scott Gilbert, Developmental Biology, Sinauer Associates, Massachusetts, fifth ed. pp. 254 and 900, 1997, where Gilbert wrongly attributes the drawings to ‘Romanes, 1901’. And George B. Johnson, Biology, Mosby-Year Book, St Louis, p. 396, 1992. Return to text.
- E.g. Mahlon Hoagland and Bert Dodson, The Way Life Works, Ebury Press, London, p. 174, 1995, presents Haeckel’s drawings in full colour, no less! And Richard Leakey, Illustrated Origin of Species, Faber and Faber, London, p. 213, 1986, where Leakey calls Haeckel’s recapitulation dogma ‘misleading’, but still reproduces the drawings. Return to text.
- Michael Richardson et al., Anatomy and Embryology 196(2):91–106, 1997. Return to text.
- Elizabeth Pennisi, Haeckel’s Embryos: Fraud Rediscovered, Science 277(5331):1435, 5 September 1997. Return to text.
- Embryonic fraud lives on, New Scientist 155(2098):23, 6 September 1997. Return to text.
- Nigel Hawkes, The Times (London), p. 14, 11 August 1997. Return to text.
- Creationists have always been aware of Haeckel’s fraud, though not necessarily its extent. See Ian Taylor, In the Minds of Men, TFE Publishing, Toronto, pp. 185ff., 275ff., 1986; Wilbert H. Rusch Sr, Ontogeny Recapitulates Phylogeny, Creation Research Society, 6(1):27–34, June 1969; Douglas Dewar, Difficulties of the Evolution Theory, Edward Arnold & Co., London, Chapter VI, 1931. Also Assmuth and Hull, Haeckel’s Frauds and Forgeries, Bombay Press, India, 1911. Return to text.