Summary:

- The article discusses the discovery of ancient graves in the Caucasus region of Eurasia that reveal distinct burial practices between two groups of people who lived in the same area during the same time period.

- Archaeologists found that one group practiced collective burials, placing multiple individuals in the same grave, while the other group used individual burials, with each person interred separately.

- The differences in burial practices suggest the two groups had distinct cultural identities and social structures, despite living in close proximity, providing insights into the diversity of ancient societies in the region.