RT Journal Article SR Electronic T1 I'll be a monkey's uncle: a moral challenge to human genetic enhancement research JF Journal of Medical Ethics JO J Med Ethics FD BMJ Publishing Group Ltd and Institute of Medical Ethics SP 611 OP 615 DO 10.1136/jme.2010.042226 VO 37 IS 10 A1 Philip M Rosoff YR 2011 UL http://jme.bmj.com/content/37/10/611.abstract AB The potential for genetic engineering of enhancements to complex human traits has been the subject of vigorous debate for a number of years. Most of the discussion has centered on the possible moral consequences of pursuing enhancements, especially those that might affect complex behaviours and components of personality. Little has been written on the actual process of implementing this technology. This paper presents a ‘thought experiment’ about the likely form of final preclinical testing for a technology to enhance intelligence as a prototypical multiplex trait. The significance and the potential dangers of implementing enhancements in humans, especially to highly valued traits such as intelligence, would mandate a thorough programme of testing in animals, including non-human primates such as chimpanzees. The implications this would have for researchers, society and, most importantly, the animals themselves are discussed, and the paper concludes with a suggestion for a morally justifiable approach to resolve the tragic question of what to do with research animals who have a cognitive capacity that is close to that of humans.