"The weather made me do it," as the saying might have gone for many, long-deceased and unnamed ancient Peruvians. Like some other populations throughout history, they were refugees of climate change who then flourished in their newly found home.
This is the story told by a recent genetic study that suggests that the evidence indicates periods of migration in pre-Columbian Andean societies in Peru, spurred on by local climate changes. It supports the archaeologists, who for years have been saying that the excavated evidence hints of such shifts by the Nasca, Wari and Tiwanaku peoples. Read more.