"By the time he was 45, cardiologist Mark Keating had reached the pinnacle of a doctor's career. He was preparing to move from his prestigious post as an investigator at the University of Utah to an even more exalted position as a professor at Harvard. He'd just won three important prizes for his comprehensive work on the genetics of heart arrhythmias. He seemed destined for even more glory in the field of cardiac genetics.

But oddly, Keating couldn't keep his mind off newts. He was particularly obsessed with an obscure species native to East Coast forests: a bandy-legged amphibian with a flat tail, blunt head, and vivid crimson dots. Red-spotted newts are endangered, but that wasn't what lured Keating away from his heart patients. Rather, newts' famous ability to heal themselves fascinated him - they can produce a new eye or sprout a leg if one is amputated, even reconnect a severed spinal cord. "

Regrow Your Own Broken heart? No problem. New liver? Coming right up. The road to regeneration starts here.