 Since humans stopped reproducing among themselves, what has been the greatest impact on human biology?
They quieted, breathing heavily, and I asked, "Is there no way, then, to produce more Prelife in order that the machines may produce more children for us? Rocsates leaned forward and asked, "Must there not—must there not have been a beginning to Prelife? "May it not be," Rocsates put in, "that these animals had no machines to reproduce their kind? And is there not a legend—admitted only a legend—that says there was a time before the machines, and before the Maternite Machine, and that at such a time both the animals and Men reproduced from within their own bodies?" Therefore, they have not been read in the known history of our race.
 significant reduction of the appearance and function of sex organs
 significant reduction of the appearance and function of sex organs  more predictable measures for increasing the global population  gradual decrease in the overall intellectual quotient of a society  a lower prevalence of birth defects and learning disabilities