A New Big Database of DNA From Indigenous Americans Shakes Up Scientists' Theories About Human Settlement of South America

I’m always fascinated by the fact that new discoveries can lead to new scientific concepts and update a long-held theory. 

Here’s another example of how indigenous people migrated between the Americas - and they did it in waves for various reasons is pretty remarkable. 

https://www.smithsonianmag.com/smart-news/a-new-big-database-of-dna-from-indigenous-americans-shakes-up-scientific-theories-about-human-settlement-of-south-america-180988628/