Christine Wells. Photo credit: AIBN at UQChristine Wells. Photo credit: AIBN at UQChristine Wells. Photo credit: AIBN at UQRyan Lister is teaching stem cells to forget the past (in front of cell images displayed on giant LED screens in the foyer of the Harry Perkins Institute of Medical Research. Photo credit: Harry Perkins Institute of Medical Research)Ryan Lister (Photo credit: Harry Perkins Institute of Medical Research)Ryan Lister (Photo credit: Prime Minister’s Prizes for Science/WildBear)Ryan Lister (Photo credit: Prime Minister’s Prizes for Science/WildBear)