Neanderthal Genome Sequencing

These individuals are coming from archaeological excavations in the Altai foothills in Siberia, where we have two nearby caves. What they think is that at least some of the individuals they sequenced were contemporary so they lived at the same time. So, incredibly, they found a father and daughter pair and they also found second degree relatives like an aunt and a nephew or a grandchild and a grandparent. Well, these individuals buried there then is that why they happen to have this grouping and they're closely related both in space and time or were they wiped out by something. Do we know.