It's my understanding that mice don't live long, because slower aging didn't provide a significant evolutionary advantage (lot's of predators, mainly). Instead

It's my understanding that mice don't live long, because slower aging didn't provide a significant evolutionary advantage (lot's of predators, mainly). Instead the rate of reproduction settled at a very high level [1]. So by that logic, engineered, non-aging mice wouldn't have much of an advantage in the wild. [1] https://biologyinsights.com/the-mice-mating-process-and-their-rapid-reproduction/ https://biologyinsights.com/the-mice-mating-process-and-thei... Fascinating, really.