We share our genetic make-up with animals. So why be squeamish about using animal genes to enhance our species?
There was a time when the use of animal organs in medicine gave many of us an attack of the moral heebie-jeebies. It was considered bestial, degrading and, well, rather yucky. No longer. Even the conservative Senator Jesse Helms, suffering from a coronary condition in the 1990s, gratefully consented to having a pig's heart valve, and I suspect most of us, offered a choice… Continue