Strontium: It Knows Where You've Been

The video explains how strontium isotopes in teeth can reveal where a person lived during their early years. Strontium, absorbed through diet, reflects local geology and remains in teeth once formed. This method aids anthropologists in studying ancient human migration and life patterns. A case study of a mass grave in Cahokia illustrates how strontium analysis can challenge previous assumptions about historical events.

Explain how local geology affects the strontium ratios found in human teeth.

What implications did the findings from the mass grave in Cahokia have on anthropological theories?