Why was it a common practice for siblings from one family to marry siblings from a neighboring family?

there was little peooke at the time and they died out quickly

Explanation:

i dont know what to tell you...is this a question of of ege or just a qeistion but if your not related then your fine but if u have same dna then no

martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.  

misty passage from the question