Not particularly Linux related, but very interesting, nonetheless.
In the 1990s, scientists received a lot of attention for their work cloning animals (remember Dolly the sheep?), and questions were raised about whether scientists were taking things a bit too far. These days, 3D printing and its potential for creating artificial human tissue could raise some of those same questions. A number of 3D body parts have been printed and used in transplants and reconstructive operations.