http://www.wikihow.com/Defend-Evolution-Against-Creationism lists the following advice:This should make it plain to anyone that genetics was indeed the antithesis to Darwinism. That it still is... well, one'd need to see though this smokescreen. Can't count on that in every case, unfortunately.

"Some contemporary biologists, as soon as they observe a mutation, talk about evolution. They are implicitly supporting the following syllogism: mutations are the only evolutionary variations, all living beings undergo mutations, therefore all living beings evolve. This logical scheme is, however, unacceptable: first, because its major premise is neither obvious nor general; second, because its conclusion does not agree with the facts. No matter how numerous they may be, mutations do not produce any kind of evolution. (p.88)" He goes on to point out that bacteria -- the subject of study of many geneticists and molecular biologists -- are organisms which produce the most mutants. Yet bacteria are considered to have "stabilized a billion years ago!" He regards the "unceasing mutations" to be "merely hereditary fluctuations around a median position; a swing to the right, a swing to the left, but no final evolutionary effect (p. 87)." He asks, "How does the Darwinian mutational interpretation of evolution account for the fact that the species that have been the most stable -- some of them for the last hundreds of millions of years -- have mutated as much as the others do? Once one has moticed microvariations (on the one hand) and specific stability (on the other), it seems very difficult to conclude that the former (microvariation) comes into play in the evolutionary process (p.88)."

Noted evolutionist Stephen Gould wrote the following regarding Ernst Haeckel's work in a March 2000 issue of Natural History:
“ "Haeckel’s forceful, eminently comprehensible, if not always accurate, books appeared in all major languages and surely exerted more influence than the works of any other scientist, including Darwin…in convincing people throughout the world about the validity of evolution... Haeckel had exaggerated the similarities [between embryos of different species] by idealizations and omissions. He also, in some cases — in a procedure that can only be called fraudulent — simply copied the same figure over and over again.…Haeckel’s drawings never fooled expert embryologists, who recognized his fudgings right from the start. Haeckel’s drawings, despite their noted inaccuracies, entered into the most impenetrable and permanent of all quasi-scientific literatures: standard student textbooks of biology... Once ensconced in textbooks, misinformation becomes cocooned and effectively permanent, because…textbooks copy from previous texts.... [W]e do, I think, have the right to be both astonished and ashamed by the century of mindless recycling that has led to the persistence of these drawings in a large number, if not a majority, of modern textbooks!"