My kids were watching, Saddle Club, the other day and saw a horse having a baby. I was in the other room, but could tell from their comments, that they were thoroughly grossed out. Later I hear this conversation.
Micah says, with disgust, "That horse just like pooped out a baby".
Isaiah answers, matter-of-factly, "That's how mammals have babies".
Olivia asks, kind of nervous, "Are we mammals"?
Micah exclaims, in disbelief, "You mean mom pooped me out"!