[jjotto]

Despite the strong Viking presence, not much Viking DNA has been found by geneticists in Ireland.

Things that make you go hmmm?

[SunkenCiv]

Maybe they wiped up after themselves.

Maybe they carried off the women and children they’d fathered.

Maybe their fairly small numbers resulted in the usual power of two reduction erasing most traces.

[OldNewYork]

Maybe they should be looking for Irish DNA in Norway, or in the Faroe Islands or Iceland then.