Growing up
Growing up Is the proccess in which a tame NPC (non player character) Such as a tame kitteb grows up into a larger version of iteself (e.g a housecat)
Monsters will grow into as follows: Baby dragons grow into dragons of the same type
Kittens grow into houscats and then into large cats
Little dogs grow into dogs and then into large dogs
Wolf cubs and winter wolf cubs grow into wolves and winter wolves
Naga hatchlings grow into nagas
hellhound pups grow into hellhounds.