[url]https://www.youtube.com/watch?v=Pj7f6L4N1q8[/url] Here's the link to the song and lyrics.

It says that the Dragonborn was both kin to wyrm and the races of men. So, does this mean that the beast races and mer (elves) couldn't be the Dragonborn? O.O Mind Blown

I know in the game you can be Dragonborn with any race and anybody can learn the thu'um as Ulfric showed in game, but lore wise and realistically the song shows that only races of men could be Dragonborn which means only Redguards, Nords, Bretons, and Imperials could be Dovahkiin.