According to Live Science, all of this appeared in a new genetic analysis, and the changes may have occurred soon after people began to settle permanently in the highlands.
They also mention that archaeological findings indicate that the people who hunted and gathered food began living in the Andes 12,000 years ago, and its permanent occupation about 9,000 years ago.
“The scientific team collected DNA from the remains of seven ancient people found at sites from one of three different cultural periods: The Soro Mik’aya Patjxa, an 8,000- to 6,500-year-old site where hunters and gatherers lived; the Kaillachuro, an approximately 3,800-year-old site whose people transitioned from foraging to farming; and the Rio Uncallane, a series of cave-crevice tombs dating to about 1,800 years ago”, said Live Science.
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