Ripley was supposed to die in the original ending!

The Alternate Endings of 20 Famous Movies - http://pulse.me/s/1WT8ye

One of the proposed endings of their original Alien movie features kind of a neat twist. The xenomorph was scripted to eat Ripley's head and then put out a distress call--in Ripley's voice!

This could be a cool evolutionary adaptation by the xenomorph to lure new victims.