I mean, 1. However, that communication is quite limited. I doubt that one dog can or would even think of describing to another dog the beauty of a sunset he had witnessed.
Humans enjoy representational art.
I think this is a good one. Show it to a dog and, so far as the dog is concerned it's just a rock or a colored flat surface. Don't know about other life forms. This is the only one I'm reasonably confident about. Humans wear clothes.