Einfach so:
Young Creature
Quick Rules: +2 to all Dex-based rolls, –2 to all other rolls, –2 hp/HD.
Rebuild Rules: Size decrease by one category; AC reduce natural armor by –2 (minimum +0); Attacks decrease damage dice by 1 step; Ability Scores –4 Strength, –4 Con, +4 size bonus to Dex.