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Two Neanderthal children from 250 kya showed lead exposure, and much else

Based on an analysis of their teeth: Two 250,000-year-old teeth from two Neanderthal children revealed that both of them were exposed to lead twice during their short lifetimes, the first known case of lead exposure in Neanderthals… “Teeth record environmental variation based on the climate, even where you’re growing up,” said Tanya Smith, lead author of the study and associate professor at Griffith University. “That’s possible because when you’re growing, your teeth you actually lock in a record of the chemistry of the water and the food that you’re eating and drinking. Because teeth have these tiny timelines, we can relate the chemistry to the growth to calculate ancient climate records. We can’t do that with any other element of Read More ›