Right, let's see:

Genesis 1:26 - The [Elohim] said, "Let us make humanity in our own image, in the likeness of ourselves, and let them be masters of the fish of the sea, the birds of heaven, the cattle, all the wild beasts and all the reptiles that crawl upon the earth."

Elohim is a plural word, including male and female, and should properly be translated "Gods" or "Pantheon."

27 The Gods created humanity in the image of themselves, In the image of the Gods they created them, Male and Female they created them.
28 The Gods blessed them, saying to them, "Be fruitful, multiply, fill the earth and conquer it. Be masters of the fish of the sea, the birds of heaven and all living animals on the earth."

Now clearly, here we are talking about the original creation of the human species: male and female. All the animals,plants, etc. have all been created in previous verses. This is before the Garden of Eden, and Yahweh is not mentioned as the creator of these people. The next chapter talks about how Yahweh, an individual member of the Pantheon, goes about assembling his own special little botanical and zoological Garden in Eden, and making his own little man to inhabit it:

Gen 2:7 - Yahweh God fashioned a man of dust from the soil. Then he breathed into his nostrils a breath of life, and thus the man became a living being.
8 Yahweh God planted a garden in Eden which is in the east, and there he put the man he had fashioned.
9 Yahweh God caused to spring up from the soil every kind of tree, enticing to look at and good to eat, with the tree of life and the tree of the knowledge of good and evil in the middle of the garden.
15 Yahweh God took the man and settled him in the garden of Eden to cultivate and take care of it.

So that's the creation of Adam and Eve... now let's move onto the kids...

8 Cain said to his brother Abel, "Let us go out;" and while they were in the open country, Cain set on his brother Abel and killed him.

Accursed and marked for fratricide,
16 Cain left the presence of Yahweh and settled in the land of Nod, east of Eden.

We can assume that the phrase "left the presence of Yahweh" implies that Yahweh is a local deity, and not omnipresent. Now Eden, according to Gen. 2:14-15, was situated at the source of the Tigris and Euphrates rivers, apparently right where Lake Van is now, in Turkey. "East of Eden," therefore, would probably be along the shores of the Caspian Sea, right in the Indo-European heartland. Cain settled in there, among the people of Nod, and married one of the women of that country. Here, for the first time, is specifically mentioned the "other people" who are not of the lineage of Adam and Eve. I.e., the Pagans.

17 Cain had intercourse with his wife, and she conceived and gave birth to Enoch. He became builder of a town, and he gave the town the name of his son Enoch.

With both of their first sons not turning out very well, Adam and Eve decided to try again:

25 Adam had intercourse with his wife, and she gave birth to a son whom she named Seth...
26 A son was also born to Seth, and he named him Enosh. This man was the first to invoke the name of Yahweh.

Now it doesn't mention here where Seth's wife came from. Another woman from Nod, possibly, or maybe someone from another neolithic community downstream in the Tigris-Euphrates valley. But her folks also, cannot be of the lineage of Adam and Eve, and must also be counted among "the other people."