One humped camel

I'm lounging around, not really! Goodness, I told you I had a costume to make :) I am actually cutting out this pattern when Jack says, "mommy, do you know what a one humped camel is called?" I will admit that I did not. That is one of those pieces of information where some would say, "why don't you know that?" And my response would be, "well, why did I really need to know it?" Ok, so back to the fact that I do not know what a one humped camel is called. So I tell Jack that I do not know the answer to this question when he says, "well mommy, it is called a dromedary." Seriously?