Chicken? Egg?

The scene: All of us around the table, eating dinner (pizza a la Cook, which is why nobody was whining about the food).

Skipper: Daddy was born the first of all of us in this family.

Cook: Yes.

Skipper: Hey! I have a question. How was the first person born, if there was no other person to give birth?

Me & Cook, in fumbling collaboration: Completely inadequate attempt to explain human evolution in four-year-old-appropriate terms.

Skipper: So... it wasn't Daddy. Daddy wasn't the first person.

Cook: No.