Conversation with Rory

Rory: Mama, do rhinos butt for babies?
Me: What??
Rory: Do rhinos butt for babies?
Me: I don't understand the question.
Rory: Do rhinos butt for babies??
Me: Rory. I can't answer the question because I don't know what you're asking.
Rory: Do giraffes butt for babies?
Me: Do you mean butt heads? Like fight for babies?
Rory: Yeah.
Me: For human babies or their own babies?
Rory: Their babies.
Me: Ok. Then yeah, I guess they do.