EJJR,
Undefined,
19 years ago
Supposedly the biology of the chesburster is related to the size and biology of the host, and that's why predaliens are unique. As for the head, who knows we've never really seen one on camera yet.
Elijah Russell
http://elijahrussell.tripod.com/alienvspredator2
http://www.elijahrussell.uk.to