We all have a doppelganger, someone who uncannily resembles us in appearance and behavior, somewhere in the world. You won’t quite know it when you see yours because you don’t quite know what you look like all the time, except when you look in a mirror

There is a theory that we are originate from one place, a gigantic tree with many branches, so your doppelganger obviously shares some of your genes. They may have once been a part of your ancestral line before a split ensued. We are all connected in a distant way, through years and years of mixing and breeding, ensuring that the best genes survive and there is always a strong variety.

There was a video that went viral last April about a girl who found her doppelganger after a two week journey. Meet Niamh and her counterpart: