The air is nearly 80% nitrogen, yet most crops cannot use it. Why? And what if evolution has quietly revealed an entirely new solution?
In this episode I explore one of the most fascinating biological discoveries of recent years. A tiny marine organism that may represent only the third known example of a bacterium becoming a permanent organelle inside another cell. If scientists can eventually understand this and harness this process, it could one day transform agriculture, reduce our dependence on synthetic fertilisers, and lessen the environmental impact of feeding humanity.
A story about evolution, curiosity, and how some of the biggest scientific breakthroughs begin with the smallest organisms.
This episode is dedicated to my aunty Jenny, who inspired generations of students as Head of Biology at Westminster School, London.