This record-breaking outcome leaves scientists hopeful for the potential for xenotransplantation, the transplantation of animal organs or tissues into humans, to address worldwide organ shortages.

A number of animal species have been considered as potential candidates for organ transplantation. Chimpanzees seemed like the obvious option due to the similar size of their organs and good blood type compatibility, but were ruled out as they are an endangered species. Baboons were also considered, but presented their own set of problems, including smaller body size, infrequency of blood type O and long gestation period. This has led to pigs becoming the potential organ donor of choice, as they share multiple complementary proteins with humans and their organs are of a similar size.