A universal theme is what everyone can apply to in there daily lives and can have many means to them.
Universal themes are ways to connect ideas across all disciplines. It is a central idea about the human condition. It is a generalization about life or human nature; they deal with basic human concerns.
I need to see it the text but I'll try. It's States that in the article, "How to Raise a Hippo" it says that's hippos need water and fish to like around.