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The old saying “You are what you eat” takes on new significance in the most comprehensive analysis to date of early human teeth from Africa.
Our ancestors used to dine almost exclusively on leaves and fruits from trees, shrubs and herbs until 3.5mya when a major shift occurred, according to four new simultaneously published studies.
A series of 4 scientific papers shows evidence of an expanding variety of plant foods, written into the enamel of fossil teeth.
Zeresenay Alemseged and others study diet via powder from fossilized hominid teeth.
New studies show that human ancestors expanded their menu 3.5 million years ago.