The Society for the Study of Reproduction supports the use of federal funds for research on human stem cells of both embryonic and adult origin. It recognizes the enormous potential of stem cell research in understanding the processes whereby cells differentiate to form new tissues and organs and the potential such work has for improving human health and well-being. At the same time, SSR recognizes that any research, in particular that is involving human embryonic stem cells, must adhere to the highest ethical and scientific standards. It therefore supports appropriate public oversight of embryonic stem cell research to assure such standards are always met.