we should know. nina zagan, director of the center for sustainable finance at cambridge university. we appreciate your time and your valuable insights and i thank you. and you'll find this in japan. they've taken a small and important step that raises the prospect of same sex couples one day having biological children together. and the technology was born using the skin cells of male lice to make female egg cells. but in the future, it could open up whole new possibilities in reproductive meadows an egg, sperm, and time. the recipe for new life in most animals is simple and straightforward. but now, a team of japanese scientists claims to have pushed the boundaries of that paradigm by creating mouse babies with 2 biological fathers. to do so, the team took skin cells from male mice and reprogrammed them into water cold stem cells. those are cells that can turn into many different cell types. the scientists then identified the ones that had accidentally lost their y chromosome and managed to duplicate the x chromosome. in other words, they changed that genetic sex of the cells. a com