Guinea pigs can eat a wide variety of fruits, vegetables, plants, and herbs but there are many things that guinea pigs cannot ...

Surgeons at NYU Langone Health in New York City had to remove a genetically modified pig kidney from Towana Looney, 53, of Gadsden, Ala., because her body rejected the organ. She's back on dialysis.

Doctors in China have become the first to report details about a transplant of a genetically modified pig liver into a human. The liver was transplanted last year into a person who was brain-dead ...