Yes, I know that, but that is on a FAWN and this is obviously not a fawn. Lets look at this deer jaw and see what it tells us!! the 3rd premolar has 2 cusps (that tells us it is over 1 1/2 years old)( if it had 3 cusps it would be 1 1/2 or younger, a fawn) It has 3 cusps on the 3rd molar (that tells us it is AT LEAST 2 1/2 years, the size of the 3rd cusp could be an indicator of 3 1/2 (but no bets). again not trying to be a smart A$$, Doc