User blog comment:Tyrannoraptor/What really happens between a Thanator & a Xenomorph queen/@comment-1197011-20140808200232

Hm... What if the Thanator is able to produce a fluid that is so basic, its basicity actually neutralizes the Xenomorph's acidity? Maybe it has specialized teeth like a serpent with which it could inject the base into the Xenomorph's body and render it harmless and weak, allowing the Thanator to kill it easily.

Far fetched, I know, but it could work...