This, is the juvenile form of the thingers..at this point they are more plant then animal. The recieve their energy from photosynthesis and as such do not require a mouth, its also why they are green at this point. Every offensive part of their bodies is yet to evolve at this point..you hafta admit, they do look a little cute though. When they are young, they still have free will. The only thing a queen can control is the secretion of a hormone which starts turning them into their adult forms.