Ime female gar tend to grow larger faster then males do. Atleast when it comes to shortnose gar, IDK if it's the same with all gar but I would assume so. When ever I caught em from the river the males rarely got to 3ft while the females can reach 4ft+ from what I've seen, that and the females always seemed to be much thicker then the males were.Been watching the babys tonight there is a big size difference im guessing going off the adults I have one female and possibly 5 males. This is only guess and time will tell