!!DNI ZADR AND PROSHIPPERS!!
I HAD to dicuss this photo because it's not talked about enough. Dib wants his father's approval and attention over all else to the point that in Mopiness of Doom he QUIT paranormal studies just to get it.
Yet Professor Membrane is so caught up in little things, like work and his "real science" that he completely misses the cues his children give him. This is why I deny the clone theory so harshly because... why would ANYBODY clone their own children only to ignore and neglect them?
The point of this photo is that Dibs father will always be unavailable to him, and he will always be busy helping the world. That's why Dib obsesses SO much over Zim and paranormal studies and BEING BELIEVED AT ALL because at this point, he doesn't care about the science of it, he simply wants his father to SEE him.