I totally agree. I had some panda babies pop this time around. They are all white with black splotches on their eyes. I keep thinking if I wait and feed them last maybe one of the older rats will die (naturally) and I can keep them!
It's not bad if your hoping for a natural death right?
Those are really cool. You'll have to write that pairing down to try again. If you have multiple males, and keep track of who breeds with who.