Aliens - The Queen

Queen aliens are significantly larger and stronger than the warriors, approximately 4.5 meters (15 feet) tall.[31] Their body structure differs also, having two pairs of arms, one large and one small. The Queen's head is larger than other adult aliens and is protected by a large flat crest above their heads. Unlike other aliens, the Queen also has high heel protrusions from her feet. The Queen also seems to have increased intelligence compared to the other lifecycle stages, as the Queen on LV-426 was able to learn to operate an elevator. Pregnant alien queens possess an immense ovipositor on their lower torso, similar to a queen termite's, which is responsible for creating facehugger eggs. The queen is able to detach from the ovipositor. When attached to her ovipositor, the queen is supported by a "biomechanical throne".[32] that consists of a lattice of struts resembling massive insect legs. Unlike insect queens, there appears to be no need for drones to fertilize an alien queen's eggs.[28][21] The newest film installment, Aliens vs. Predator: Requiem also features a new form of oral implantation, by which the Predalien mimics the action of facehuggers, directly depositing multiple chestburster embryos into a host via its inner jaw[33] The Strauss Brothers, directors of the film, have gone on to say that this is a stage between chestburster queen and adult, in an attempt to build her army before she grows the egg sack and cannot defend herself.[33]