I had two colored mice (one black and one "lethal yellow") that came from standard albino lab mouse parents from a pet store. The black one lasted less than 24 hours (had a seizure then died) and the "lethal yellow" one lasted a few days and died in the past few hours (cause of death unknown, but I suspect it was due to a sever seizure). Both mice were considered to be small feeder mice, so they were probably pretty close to hitting breeding age.
I now suspect that their coloration was due to the "knockout" of the the color genes that caused their parents' coloration. I know that "knockout" lab mice tend to be much more prone to sever health problems than other mice, so that would explain the lethal seizures which may be related to diabetes which is apparently common in at least the "lethal yellow" mice.
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