Check out this Flickr photo set... of CAT SCANS!
Get it? CATS! No brain tumors involved here folks! Unless you count the one currently shacking up in my hippocampus that is very clearly blocking the oxygen from reaching the "functioning" folds of my grey matter.
What is a hippocampus anyway?
I mean, do hippos even go to college?! Hello!? (furiously punching myself in the face) Is this thing on??
And I'll just throw this in for good, pukey measure. If you stare long enough, you start to believe in a God!
(Both links via Gonzoo, an entertaining, if not completely confusing, blog from the Netherlands.)