Not to be scientific or anything, but two dimensional birds cant exist.
they just cant.
Well, so says this little 'theory' by one of my friends at any rate, so buckle up, your in for much hilarity
Okay, first of all, we'll assume that this is a crappily drawn 2-D bird, okay?
Now, how can the bird eat? remember, it is 2-Dimensional, absolutely no depth, so we need to add a digestive trackt...there.
So you see, 2-D birds cant exist!
(dont ask me why he used birds instead of any other animal, i dont know, but I was LMAO when he finished explaining this, so I thought I might share it online (he's not computer-literate))