OK...Who wins...

ok, here is a thought that might make even more confusing...as if that was possibly.  You may recall in The Thing (original) that the ice it was buried in was at least 100,000 years old.  The researches even suspected that this thing could have replicated an unknown number of other species from other words as well....maybe it could morph into some crazy creature that would whoop up on the xenon....

Xenomorph I mean

@SteveRogers1973 you are probably right that Thing has a critter in the toolbox that will give the Xeno hell, it's just a war of attrition. Who has more meat for the grinder?