actualy Predators do have tounges.if u would watch Predator2 in the bath room scene he was healing himself and it did a close up and showed his face and he had a snake like tounge.
predaliens would most likely use their mandibles as weapons (unlike preds), their most likely combat use would be to grasp the victims head to resent their struggling & hold them in place long enough for the inner jaw to finish them off (predaliens DO have inner jaws, you can see the predalien chestburster at the end of AVP has one)
Yes, so basicly they wouldhave 3 mouths if my counting is right... lol The mandibles, the external "normal" mouth and then the inner mouth... Weird... lol Hmmh, or have the external mouth grew up with the mandibles...
I think the predalien uses the mandibles to hold its victim for a variety of things. Holding down for a head bite or to impregnate someone, like in avpr