Yeah the simplest explanation is the conventional one, which is that all humans came from a common tribe that migrated out of africa long after the continents h

Yeah the simplest explanation is the conventional one, which is that all humans came from a common tribe that migrated out of africa long after the continents had separated mostly, and the way they got to some of the continents had to have been by boat. My initial post was merely saying how interesting it would be that language could have evolved well before primates, and we would have no way of knowing it. All you have to do is look at the fact that dolphins have language, and are very intelligent. Intelligence and language is far from being specific to human brains.