User blog comment:Doctor Ibrahim/Ask the Doc and his Family!/@comment-28530195-20160820045810/@comment-28358106-20160821191218

"Yes, a very specific reason.  Because whatever recollected information she has appears on her extremities, the more she has, the more she can actively recollect.  Six is her maximum, however---four arms, torso, and tail--- because more than that and she wouldn't be able to focus on them all.  It'd be like having more than six books open at a time."