I doubt this. We seem very hesitant to seed any world with any kind of life, even going through great lengths to ensure no errant bacteria get carried on a rove

I doubt this. We seem very hesitant to seed any world with any kind of life, even going through great lengths to ensure no errant bacteria get carried on a rover or something. If we were serious about spreading life, we could loaded up some rockets with basic organisms and throw them onto whatever worlds we want to seed, and then a few million years of evolution should take care of the rest.