Scientists Unlocking the Secrets of Regeneration

Stephen Badylak, Deputy Director, McGowan Institute for Regenerative Medicine, University of Pittsburgh Lizards can regrow an entire tail, and salamanders can regrow a leg. Unfortunately, our human bodies mainly just close wounds and make scar tissue. But just imagine the possibilities if we could grow a new limb after an amputation – or a new organ, rather than needing a transplant? (Originally aired: 1/2/19)