did you know milk is supposed to be green

I'm sure if you leave it enough out of the fridge it'll go through a cycle of colors that will include also green at some point.

Then what happened ? They named it white ?

Before it's pasteurized and made safe for us to consume, I would assume.

And yours is brown because you are full of baloni.

From what mammal is it green?

If you're asking about raw milk, I agree.