The Sumerian texts don't tell the Garden of Eden snake story the way the Bible told it 2000 years later. The "Serpent" was the top Sumerian genetic engineer, and the name meant "wisdom."
The Serpent felt sorry for the all-male gold mine slaves he'd already genetically engineered, using alien Sumerian DNA mixed with that of human apes..they couldn't understand they were enslaved.
So he and another Sumerian geneticist secretly engineered a female human, who would be smart enough to know this. Their first female was too savage..too much Royal Draco DNA, so they made Eve, and the second try was better.