I've always kind of wondered if Smurfs were mammals or not. Ok, everyone knows they have hair, but that is only one aspect of being classified as a mammal. Whether smurfs have the other two major characteristics of mammals (mammary glands and live birth) is a toss up in my opinion. My personal opinion is that they are an egglaying culture, given that there is one female and 101 males. Anyone else have any theories?