Using the Yola blog categories

Is it possible to have more than 1 category listed for a post? For example, what if I were to talk about 3 different things in my one post like dogs, cats, and horses. I do the tags for them which would be dogs, cats, horses. Then, when I go to categorize them, it seems that I can only select one particular category. Is there a way to put this post into 3 different categories as it pertains to 3 different topics?