A patient in China grew a replacement ear on his arm that has since been transplanted into its more likely resting place on the side of his head. Efforts to grow ears have developed in leaps and bounds over the last twenty years with more practical application being seen in China as a result of their less restrictive stem cell research rules and focus on innovation rather than regulation in medicine. Ji's ear grew with the help of a 3D printed skin expander, and after a successful transplant surgery, he is expected to be released from the hospital in the next two weeks. Read more at 3DPrint.com: http://3dprint.com/170366/man-grows-new-ear-on-arm/