After reading through the complete care guide, I have a general idea of how to tell the approximate age of my boas. I would appreciate any help if there is another way of guesstimating their ages. I have one RTB that is 4' and I picked up a baby last night that is 19". I purchased my baby from a pet store, but they didn't have any record of when the boa was born. I know I'm not going to get real close to knowing their ages, but the closer I can get the better. Thanks!