Anyone who has ever squirmed through a dental cleaning can tell you how sensitive teeth can be. This sensitivity gives ...

Sharks, skates and catfish also have tooth-like structures called denticles that make their skin feel like sandpaper. When Haridy studied the tissues of her catfish, she saw that the denticles were ...

New research shows that dentine, the inner layer of teeth that transmits sensory information to nerves inside the pulp, first evolved as sensory tissue in the armored exoskeletons of ancient fish.

Sensory features on the armored exoskeletons of ancient fish may be the reason why humans have teeth that are sensitive to ...

Teeth are sensitive because they evolved from sensory tissue in both ancient vertebrates and ancient arthropods.

once considered to be an ancient fish, was actually an arthropod. Haridy’s original aim was to solve the mystery of the oldest vertebrate animal that exists in the fossil record. She approached ...

One of those signs, at least in later fish, is the presence of dentine ... this specimen would have extended the fossil record back by tens of millions of years. “We were high fiving each ...

Our sensitive teeth originally evolved from the "body armor" of extinct fish that lived 465 million ... identify the earliest vertebrate in the fossil record, seeking out fossil specimens from ...

Ancient Fish and Human Teeth CT scan of the tooth-like-odontode ... Instead, Yara Haridy, a research fellow in Shubin’s lab, intended to identify the earliest vertebrate in the fossil record. She ...