@CNN: 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 https://t.co/NVPRpiAV0x https://t.co/IB014JKAzg

@CNN: 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 https://t.co/NVPRpiAV0x https://t.co/IB014JKAzg