Nope. Who's to say though, that "uni" had anything to do with the one horn? What if it's just one brain or one tail or one heart eh? Cause a "corn" don't look like a horn to me.
I should also say that since this is a mythology thread, all depictions don't have to be accurate or resemble any sort of fact at all. Period. You keep that atheism science mumbo jumbo outta our beautifully recreated mythology. there's no place for science in here.