i don't believe that aliens are responsible for our creation personally, although i've seen it argued fairly convincingly...

aside from the civilizations mentioned, another one that has an interesting account of aliens being responsible for life on earth is the Sumerians. their creation account and flood story, for example, are said to be hundreds of years older than the Bible accounts but yet they are pretty similar. they believe that aliens from outer space came and grafted their DNA onto neanderthals or something like that, if I recall correctly...