Add Yahoo as a preferred source to see more of our stories on Google. A new study, published on May 21 in the journal Nature, has revealed surprising information about the origins of human teeth. Our ...

Long before evolution equipped them with the right teeth, early humans began eating tough grasses and starchy underground plants—foods rich in energy but hard to chew. A new study reveals that this ...

For decades, small grooves on ancient human teeth were thought to be evidence of deliberate tool use – people cleaning their teeth with sticks or fibres, or easing gum pain with makeshift “toothpicks” ...