Yes, all depends on many things. The numbers I read were just an average and "if's". We have ferals in the park going on 8 years now. This is not the average, but they aren't near busy roads, are getting fed regularly, are fixed so they're not out wandering for the opposite sex or food, etc. Outdoor cats that live near busy streets, have predators such as coyotes or large birds of prey, usually have a life span between 1 - 2 years.