This article is from the Alien Movies FAQ, by Darryll Hobsonand Eelko de Vos E.W.C.deVos@TWI.TUDelft.NL with numerous contributions by others.
- eggs are initially created inside a queen alien and enter the
world (after being queued in her extended abdomen) via slimey tube to
stand on their own (indicating that there is a definite "up" side and
"down" side to the egg). The egg itself is a leathery object [...it's
full of leathery- objects; like eggs or something... Kane (Alien)],
translucent and approximately 2.5 feet tall. According to a scene
that was cut from "ALIEN" these eggs could also be "constructed" by a
regular alien "infecting" an organism (which would undergo some sort
of metamorphosis) however, this concept was not supported (nor denied)
in "ALIENS" and "ALIEN^3". It is important to note that this method
was the originally intended method of the designer of the Alien, H.R.
Giger.
"ALIEN^3" eggs - the egg in "ALIEN^3" was smaller than we had
previously seen and it was more bulbous.
 
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