 I formerly thought that when a tendency to produce the two sexes in equal numbers was advantageous to the species, it would follow from natural selection, but I now see that the whole problem is so intricate that it is safer to leave its solution for...  The Evolution of Sex - Page 38by Sir Patrick Geddes, John Arthur Thomson - 1889 - 322 pagesFull view - About this book
 | Howard D. Weinbrot - 2005 - 412 pages
...matter of sex ratio through the theory of natural selection. In 1874 he corrected himself and said: "I now see that the whole problem is so intricate that it is safer to leave the solution for the future."2 The other option requires dealing with a difficult problem in the present.... | |
 | Éric Brian, Marie Jaisson - 2007 - 258 pages
...preponderate, but it is by no means obvious how this male-producing tendency could have been acquired. I formerly thought that when a tendency to produce...it is safer to leave its solution for the future. (1874, p. 255, pp. 258-260). Appendix C MAURICE HALBWACHS (1877-1945) Extracts from "Recherches statistiques... | |
 | 1972 - 178 pages
...selection acting at two levels of integration — the individual and the race. He concluded "that the problem is so intricate that it is safer to leave its solution for the future". In the light of our present knowledge of heredity the solution is clear. Properties of sex determination... | |
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