[CDATA[ The average lifespan of the Florida mouse is 1 year in the wild, although 3–7 years has been documented in captivity. At that point, you no longer have a mouse problem – you have a mouse infestation. Watch how the fun starts when they learn and grow to be their better self through purposeful play because learning together makes things simpler. By the age of 5 days, these mice are beginning to have a noticable hair cover on their backs. //