Today Max asked me if ants have noses. I think he's asked me this before, but today he insisted that I “look it up.” So I did-- ants smell with their antennae. “What about crabs?” (I looked it up.) Crabs smell with their antennules. “What about beetles?” According to Wikipedia, beetles smell with their antennae too. Over lunch he thought of some more-- “What about flies, I forgot to ask about them. Oh, and do they have eyes?”
Remember before the Internet, when parents could just say, “I don't know?”