We meet the teams that have had impressive recent successes transplanting pig organs into people. We’ll explore the huge leaps of genetic engineering that are making 'xenotransplantation' possible and ask if it’s even ethical to try.

In the studio with Marnie Chesterton, Dr Graham Easton guides us through the science of getting pig organs to work in human bodies.

We also hear from transplant surgeon Dr Devagourou Velayoudam and Professor Nadey Hakim, on how these breakthroughs might benefit India and Nigeria, and other countries which don’t have the same medical and research resources of the US.

Presenter: Marnie Chesterton

Producer: Ilan Goodman

(Picture: Two pigs on a farm. Photo credit: Charity Burggraaf/Getty Images.)