Surgeon Muhammad Mansoor Mohiuddin is a leader in the novel field of xenotransplantation—transferring organs from one species ...

After years of research into xenotransplantation, the field is at a turning point—yet risks and ethical issues remain ...

U.S. Fish and Wildlife Service wants people to eat more invasive species. You can get nutria, wild pigs, carp and northern ...

A genetically modified mini pig’s liver was able to function in the body of a brain-dead patient throughout a 10-day experiment.

The trial was part of a small — but growing — group of animal-to-human organ transplants, in a practice known as ...