Sign in to NFL Now to watch the best of the NFL, personalized for you

3D Printer Helps Scientists Grow an Ear

Associated Press Videos 1:06 mins

Scientists at Cornell University created a new human-shaped ear using a 3D printer and injections of living cow cells. The researchers hope one day they'll be able to use a person's own cells to quickly customize implants. (Feb. 22)

View Comments (0)