Human intelligence means we can be especially devious and often cruel. We know some animals can solve problems and they can show concern for other animals, or even people. Mind you, I don't rate my chickens are being too smart. I'll still treat them well.
I don't always use all the tags if I can't think of five. Some I use are fairly unique. I've noticed that the feeds for tags are not working so well lately. I'll see one post when I know there are lots more.