The operation sparked controversy from medical ethicists and animal rights activists alike Bettmann Archive/Getty A baby born prematurely and in need of a heart transplant captivated the nation when ...

Philadelphia is a city of firsts. The city's first heart transplant came 42 years ago. Sixty-year-old Earl Jones was born with a congenital heart defect. By age 30, he was in congestive heart failure ...

Add Yahoo as a preferred source to see more of our stories on Google. History was made after a team of surgeons successfully performed a pediatric partial heart transplant in Southern California for ...

When a baby born prematurely was in need of a new heart, doctors found the answer in an unlikely and controversial source: a baboon. What happened next captivated the nation and ignited conversation ...

History was made after a team of surgeons successfully performed a pediatric partial heart transplant in Southern California for the first time. Ymiliano Hernandez, 12, was born with truncus ...