Ok heres the different forms and breeds of aliens in the game - Screen captures by Wedgy

 

...We start with the Egg...

...^this opens to produce a nice little facehugger^..

...^this attaches itself to a hosts face and injects the larve to create a chest burster, which then forms in to one fo the following breeds depending what host you choose^...

...^your regular Alien Drone, host required is a marine^...

...^The Runner, named for its outstanding speed and movement, host required is a Corperate Human^...

...^the strongest and probably best defence level of the alien species, the Predatorian, slow and can't climb walls, but this is made up by the outstanding strength and defence it posesses^...

 

...(Predalien images coming soon)...

..^And heres what you can become with a molting kill amount reached, you will morph in to a queen, the ultimate fear factor of the species, strength its harshly high, as is defence, and her massive size can be quite daunting as well as her soul-shattering roar^ we have two iamges of this form for you to enjoy for now :) ^...