So we are chickens?!?

During breakfast, J was telling me about different aninals who shed either fur, feathers, or skin. Then he got onto the odd facts about animals, ie. a bulls horns are made of the same materieal as a fingernail, etc. I admit I wasn't paying much attention until he started talking about how girls have eggs in them. What?!? Are they teaching him sex ed in 3rd grade? I looked up from laptop and listened a wee bit closer. The science teacher mentioned how girls have, to quote J, "eggs in them somewhere, I don't quite get where" and that one of the girls in his class blurted out "they we are just like chickens!" I may have to prepare that "where do babies come from speech" a little sooner than I thought.