Here’s what you’ll learn when you read this story: With more than 100,000 people in need of an organ transplant in the U.S. alone, scientists have turned toward perfecting human-animal chimeras as a ...

An ethically questionable new genetic technique attempts to grow human organs inside of pigs.

In a New York operating room one day in October 2025, doctors made medical history by transplanting a genetically modified pig kidney into a living patient as part of a clinical trial. The kidney had ...

As a bioethicist and philosopher explains the ethics of using organs grown in animals for human transplant procedures. When you purchase through links on our site, we may earn an affiliate commission.