Braces, rubber bands, even jaw surgery—millions endure them in pursuit of a straighter smile. But were misaligned smiles ...

Unlike animals like sharks and elephants who have the ability to grow new teeth, humans only have one set from adulthood, the scientists say. The ability to regenerate teeth would therefore mark a ...

By analyzing ancient DNA, scientists determined when, where and how our ancestors got sick from infectious diseases.

The sensitive interior of human teeth might have originated from a seemingly unlikely place: sensory tissue in fish that were swimming in Earth’s oceans 465 million years ago.

Proteins degrade over time, making their history hard to study. But new research has uncovered ancient proteins in the enamel ...

Two new papers analyze fossils found in Canada and Kenya, respectively—vastly different environments for the preservation of ...

When hunter-gatherers began living close to animals, the pathogens that cause the plague and leprosy got closer too.

Urbanization has had visible morphological effects on chipmunks and voles in the Chicago metro area. While both chipmunks and ...