This is not a joke but a fun thing, I hope it's okay to post it. It is a link to a video I made today, with the cats as the stars proving they can see colour. It's very funny I think! I don't know how to create a link (I am tempted to use HTML code but think this won't work and might mess up this post).
And please mods: if this is not allowed let me know; I have no idea!
https://www.soulfulash.com/cats-lights.php