Michael Portillo has left Channel 5 viewers flabbergasted after he tucked into a spleen sandwich. The 71-year-old presenter was on a quest in Sicily, Italy to try out some of the local delicacies.

Wenzhou Medical University researchers have reimagined the spleen as a viable site for islet transplantation, enabling long-term diabetes control without the burden of full immunosuppression.

"The spleen acts like a living bioreactor embedded in our bodies," said Dong. "With minimally invasive B-ultrasound-guided delivery, we could one day cultivate custom-made organs on demand." ...

While the spleen might partially explain how the Bajau dive so well, other adaptations may be at play, too, says Richard Moon from the Duke University School of Medicine.