The other afternoon when my husband was reading a biology book to the boys that had simple illustrations of babies in utero, Zachary was compelled to add to the conversation,
"Yes, and also babies are a gift from God."
Sweet as it was, I thought his comment indicated that he really wasn't interested in the scientific aspects, but then today when I asked Nicholas to pick something up for me and Nicholas asked why Zachary explained,
"Because, Nicholas, our new baby has his head in a bowl that is made out of Mama's bones and that bowl is called a pelvis and if she bends the baby could hit his head on her bones."
Not accurate exactly, but definitely biological.