How to Build a Beating Heart
- Episode aired Feb 2011
- TV-PG
- 45m
National Geographic explores the latest science that may be on the verge of producing a limitless supply of replacement body parts.National Geographic explores the latest science that may be on the verge of producing a limitless supply of replacement body parts.National Geographic explores the latest science that may be on the verge of producing a limitless supply of replacement body parts.