A surprising increase of variation during the Viking period indicates that gene flow into Scandinavia was especially intense during this period.>>>>>>>>>>>>>>>>>>>
All those slaves the Vikings brought back from Queensland!
And the Vikings made them row all the way over to Newfoundland!
They killed the men, stole the women and children. Naughty Vikings. I bet the victims were mostly Irish. (As are the majority of locals who claim to be native Australians.)
Irish is like chicken manure. A little goes a very long way.