It has already been said that Arizona is one year old and that cows in Foenum age the same as real cows. So how old would the rest of the cast be? Assuming that the rest of the cast also ages and lives as long as their real life counterpart, there are some estimates that can be made. Reindeer live roughly 21 years and reach maturity at 2 years. Since Velvet gives the impression of a young adult, I would estimate her age to around those 2 years, could be a bit over or even under. Sheep live up to 12 years and at 12 months, a lamb becomes a sheep, which means that Pom must be under a year old, since she is specifically called a lamb. Judging by her height and mental maturity so far, I would estimate her at around 10 months old then. Paprika is like Velvet in the fact that she is most likely a young adult already, though I would still judge her to be a bit below the maturity age for her species. Alpacas live up to 20 years and reach maturity between 16 and 24 months. So I would estimate Paprikas age to be a bit over a year, maybe one and a half years. Oleander and Tianhuo are tougher to crack, since both are mythical beings. It has already been stated that unicorns do not age like horses, so using those to help estimate her age would be pointless.