Check out this “surprising” finding …
… Well, that kind of depends. Who did we think they were?
In the article, “who we thought they were” is a complete straw man where “we” thought that every single Viking was tall, blond and blue-eyed, and all of one monolithic genetic stock.
In fact, even before the age when they spread out across Europe, apparently the Vikings had genetic admixtures from Southern Europe. Also, some people who were not ethnically Viking were given Viking burials.
In other words, people move around a lot and intermarry with each other. And they influence each other culturally.
Also, no large ethnic group is genetically monolithic.
What a surprising finding.