This stems from the cats inate ability to see into the 8th Dimension. Dr. Buckaroo Banzai conducted some ground breaking experimentation on this back in the 80's but was stopped due to a lack of funding.
Or when they stare at something intensely- something you cant see.
This is typically an opening, or "rift" between the two dimensions. They are observing the Red Lectroids as they enter/exit the rift.
Loved that picture
and especially the silent jokes - like the hideout of the Red Lectroids having a sign on their door warning "This place is sekrit. No one cumz in here."
or John Lithgow/Lord Worfin haranguing the faithful and ending up with "When do we want it?" and gets the reply "Real soon!"
Are you channeling me or something?
Don’t forget John Many Johns
We need more folks Perfect Tommy to clean up the world.
(trivia secret: The guy who played (and died as) Rawhide is now the voice of Mr Crabbs on SpongeBob.)