Why does honey nut o's smell like wet cat food?

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I'm sitting here eating my breakfast and I find myself wondering why honey nut o's smell like wet cat food? Now I wonder if the cat food has oat product in it. I could google this, and I prob will, but later. It just struck me how awesome the net is. Yeah we have to be careful about where we get our info, but it's like right there! Growing up we had an old set of encyclopedias, and often mom would tell me to look things up. I don't know how we got those, and I know they are expensive. We were lucky to have them. Most kids had to wait and ask a teacher or get to the library. Remember those days? Spending hours and hours working at a library on a research paper?