The raptor wasnt fighting the alien for food..it was fighting to defend its life
this wasnt meant to be a deep story...
simple enough its just a fight that would be interesting in a film..
-yes they are JP velociraptors who knows the preds could have enhanced them etc. the story does not say we cannot answer that..
just appreciate the fight because there not much stories like it..notice the HEAD of an alien contains brain not acid thats what i was thinking when i wrote that scene..in avp when scar cuts that alien head with the disc it doesnt spew acid its just brain inside..
but yeah theyre *some* flaws but hell its interesting to read and i put A LOT into the description and intense fight
i particually like the queen annihilating the raptor at the end