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Grasse went on to point out that bacteria, much studied by geneticists and molecular biologists, produce the most mutants,<ref>[http://www.veritas-ucsb.org/library/origins/quotes/mutations.html Veritas Forum]</ref>, yet bacteria are considered to have "stabilized a billion years ago!".<ref name="Grasse" />

Grasse went on to point out that bacteria, much studied by geneticists and molecular biologists, produce the most mutants,<ref>[http://www.veritas-ucsb.org/library/origins/quotes/mutations.html Veritas Forum]</ref>, yet bacteria are considered to have "stabilized a billion years ago!".<ref name="Grasse" />

Grasse 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."<ref name="Grasse" />

Grasse 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."<ref name="Grasse" />

In addition, [[Harvard]] biologist [[Ernst Mayr]] wrote: "It must be admitted, however, that it is a considerable strain on one’s credulity to assume that finely balanced systems such as certain sense organs (the eye of vertebrates, or the bird’s feather) could be improved by random mutations."<ref>[http://www.creationscience.com/onlinebook/ReferencesandNotes10.html Ernst Mayr, Systematics and the Origin of Species (New York: Dover Publications, 1942), p. 296]</ref>

Although he believed that random mutations produced new features, [[Harvard]] biologist [[Ernst Mayr]] admitted the difficulty with the idea: "It must be admitted, however, that it is a considerable strain on one’s credulity to assume that finely balanced systems such as certain sense organs (the eye of vertebrates, or the bird’s feather) could be improved by random mutations."<ref>[http://www.creationscience.com/onlinebook/ReferencesandNotes9.html Ernst Mayr, Systematics and the Origin of Species (New York: Dover Publications, 1942), p. 296]</ref>

[[Creationism|Creation scientists]] argue that mutations ''cannot'' generate new genetic information.<ref>[[Answers in Genesis]], [http://www.answersingenesis.org/home/area/faq/mutations.asp Mutations: Questions and Answers]</ref><ref>Dr. [[Jerry Bergman]], [http://www.trueorigin.org/mutations01.asp Darwinism and the Deterioration of the Genome]</ref><ref name="Dawk" /><ref>[[Jonathan Sarfati]], P.H.D., F.M.,  [http://www.creationontheweb.com/content/view/3831 ''Refuting Evolution'', Chapter 2, Variation and Natural Selection Versus Evolution]</ref><ref>[[Answers in Genesis]], [http://www.answersingenesis.org/home/area/faq/selection.asp Natural Selection Questions and Answers]</ref>

[[Creationism|Creation scientists]] argue that mutations ''cannot'' generate new genetic information.<ref>[[Answers in Genesis]], [http://www.answersingenesis.org/home/area/faq/mutations.asp Mutations: Questions and Answers]</ref><ref>Dr. [[Jerry Bergman]], [http://www.trueorigin.org/mutations01.asp Darwinism and the Deterioration of the Genome]</ref><ref name="Dawk" /><ref>[[Jonathan Sarfati]], P.H.D., F.M.,  [http://www.creationontheweb.com/content/view/3831 ''Refuting Evolution'', Chapter 2, Variation and Natural Selection Versus Evolution]</ref><ref>[[Answers in Genesis]], [http://www.answersingenesis.org/home/area/faq/selection.asp Natural Selection Questions and Answers]</ref>