This week we discuss two separate regions in South America. We discuss the hunter gatherer groups living in Argentina and how they had been genetically isolated from the rest of the continent. We also discuss the various groups of peoples who had migrated from the Orinoco River valley to occupy the Guianas to become prolific hunter gatherer fishers and would begin to travel up and down other rivers into the Amazon Basin and how they would being to colonize the Caribbean.

Science article: https://www.science.org/content/article/mystery-group-lived-central-argentina-millennia-ancient-dna-reveals

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