Some believe that the Anunnaki were Reptilian and from the Zeta 2 Reticuli System, and that the Grays are a geneticallly engineered race (a blend of
the Praying Mantis/Insectians and Reptilians) that came about later.
See:
members.aol.com...
It makes sense that Zetan-aliens have been around since the dawn of humankind and there is anectdotal and archeological evidence supportive of
that.
I don't think that the Greek pantheon of "gods" were extraterrestrial but I do think that at least some of the earlier "gods" of Sumeria
definitely were alien -- as Zecharia Sitchin espouses.

