Self-suffinciency?

??? you'd still have the same amount of Xenos if they did that cause your not changing a host into an Xeno...so 4 Xenos face hugged would still equal 4 Xenos....follow

Interesting concept. Though with evolution, usually when mixing the same gene pool over and over, you get negative results... instead of the obviously better/cooler super strengths lol. However, if we are going of a Aliens 4 idea... we know the Xenos dig the idea of sacrifice for the greater good (them killing one to spill acid on the floor so they can escape). So really the idea that they would sacrifice themselves to give new life isn't so far fetched. My bet is, they look for the most superior life form. Impregnate it or whatever, and then defeat it until they find the next best life form. The question remains though, which Xeno is the superior? The SJ Xeno, or the Human Xeno.... or the Predator Xeno which I hate to acknowledge in this lol.

To SSgt: I meant that they would be able to sustain the number of xenos, and seeing as there would allways be eggs being made, there is a better chance of queen eggs turning up, the more queens, the faster the colony grows. To chesty, what does a jockey xeno look like? We don't even know if any jockes got facehugged, as they're heavilly implied to have created the xenos, and would know their weaknesses. If they did exist however, they would DESTROY human xeno and probably still own PX.

We know the SJ gets face hugged, because in the original Alien, his "bones are bent outward, like he exploded from inside." That fact is used as forshadowing in Alien - It would sure cheapen the original film if that now became a form of misdirection. As much as we dont want to consider AVP (etc) as cannon, it would surprise me if Ridley was less than loyal to clues given in his own previous film. What say you all?

I can't see how the infant 'chest-burster' would survive coming out of a xeno, due to the acid for blood........

i think birth defects would be an issue lol possibly brake fluid for blood instead of acid lol

Skyguy: Maybe not, Ripley said that the jockey in the seat was only a jockey spacesuit, so maybe after crashing it's zipper malfunctioned and had to get out through the chest? And I think it would be even better, the fact that what looks like an original clue to the xenos was actually a hint to the genius behind them. And bellasian, as demonstrated in avp, xenos are resistant to their own acid, due to their outer armour being made of polarised silicon. All that (plus alterdstate's comment) are worth thinking about.