Building on previous experiments, an international team of scientists has created chimeric human-monkey embryos, which were kept alive for nearly three weeks. The breakthrough could lead to new ways of testing drugs and generating organs for transplant, but this line of research is raising some...

Building on previous experiments, an international team of scientists has created chimeric human-monkey embryos, which were kept alive for nearly three weeks. The breakthrough could lead to new ways of testing drugs and generating organs for transplant, but this line of research is raising some...

Building on previous experiments, an international team of scientists has created chimeric human-monkey embryos, which were kept alive for nearly three weeks. The breakthrough could lead to new ways of testing drugs and generating organs for transplant, but this line of research is raising some...