Teeth May Hold Clues About Early Man's Weaning Patterns

Scientists have long speculated that the early weaning of human babies gave homo sapiens an evolutionary advantage over Neanderthals. Now they may have discovered a way to prove the theory.

New research indicates that the level of barium measured in teeth corresponds with increased breastfeeding.

“People have speculated that an early weaning process in modern humans may have been part of their evolutionary advantage,” said Tanya Smith, an associate professor of human evolutionary biology at …

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