The issue focused on bioengineering research has produced extensive controversy over whether chemical modification has occurred at all in nature and whether human beings could possibly influence such mechanisms of evolution in ways that might ultimately serve human survival and evolutionary fitness. Such debates should have occurred far sooner than researchers usually realize. Thus, such debates must take place within an ethical framework that recognizes that scientific inquiry must determine whether existing theories have merit and whether potential explanations need to be explored with caution and skepticism. Science News Feed User Reviews Send Feedback Join Us Tweet Comment