A new study, published on May 21 in the journal Nature, has revealed surprising information about the origins of human teeth. Our teeth evolved from the piercing “body armor” of extinct fish, which ...

[ Related: Butchered skulls point to Europe’s Ice Age cannibals. ] The study centers on the Zvejnieki cemetery site in northern Latvia. Dating back to about 7500 to 2500 BCE, more than 2,000 animal ...

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Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to sink into their prey, while herbivores tend to have flatter teeth to grind down their plant-based meals. Some ...