“Every series of breeding experiments that has ever taken place has established a finite limit to breeding possibilities.” Francis Hitching, The Neck of the Giraffe: Where Darwin Went Wrong (New Haven, Connecticut: Ticknor and Fields, 1982), p. 55.
“All competent biologists acknowledge the limited nature of the variation breeders can produce, although they do not like to discuss it much when grinding the evolutionary ax.” William R. Fix, The Bone Peddlers: Selling Evolution (New York: Macmillan Publishing Co., 1984), pp. 184185.
“A rule that all breeders recognize, is that there are fixed limits to the amount of change that can be produced.” Lane P. Lester and Raymond G. Bohlin, The Natural Limits to Biological Change (Grand Rapids: Zondervan Publishing House, 1984), p. 96.
Norman Macbeth, Darwin Retried: An Appeal to Reason (Ipswich, Massachusetts: Gambit, 1971), p. 36.
William J. Tinkle, Heredity (Houston: St. Thomas Press, 1967), pp. 5556.
“... the distinctions of specific forms and their not being blended together by innumerable transitional links, is a very obvious difficulty.” Charles Darwin, The Origin of Species, 6th edition (New York: Macmillan Publishing Co., 1927), p. 322.
“Indeed, the isolation and distinctness of different types of organisms and the existence of clear discontinuities in nature have been self-evident for centuries, even to non-biologists.” Michael Denton, Evolution: A Theory in Crisis (London: Burnett Books, 1985), p. 105.
“... the discovery of the Danish scientist W. L. Johannsen that the more or less constant somatic variations upon which Darwin and Wallace had placed their emphasis in species change cannot be selectively pushed beyond a certain point, that such variability does not contain the secret of indefinite departure.’ ” Loren Eiseley, Darwin’s Century (Garden City, New York: Doubleday & Co., Inc., 1958), p. 227.
“The awesome morphological complexity of organisms such as vertebrates that have far fewer individuals on which selection can act therefore remains somewhat puzzling (for me at least), despite the geological time scales available ...” Peter R. Sheldon, “Complexity Still Running,” Nature, Vol. 350, 14 March 1991, p. 104.
Bland J. Finlay, “Global Dispersal of Free-Living Microbial Eukaryote Species,” Science, Vol. 296, 10 May 2002, pp. 10611063.