I'm sure this has already been discussed many times before but I was curios and searching didn't pull any threads that seemed relevant. I was wondering why there is no "animal" tag that lies at the root of all animal species tags. There are plant and fungus tags (but they are not species tags!), but no equivalent for the animal kingdom. Was it deemed too vague or not useful enough? Or some other reason?
I mention it because I've had a few cases where I wanted to look for non-animal characters within an existing serach but remembered there is no animal tag so I can't add -animal to the search.