I heard from someone on another forum that Scott indicated that the creature is dying by the 4th act when Ripley reaches the Narcissus, thats why it was so lethargic, sleepy and unresponsive to Ripley in the beginning when she was undressing and preparing for cyro. It had a very short life span originally . Which would be very understandable since it really was intended as a bioweapon to kill with agility and speed and could kill a lot within a short time span.
Is this at all true?