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

Paleontologists have long suspected that our teeth evolved from bumpy structures called odontodes on the exoskeletons of prehistoric fish—but they didn’t understand exactly what these bumps were used ...

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

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.

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 ...

Blame it on a prehistoric armored fish. While the outer layer of our teeth is coated in hard enamel, it’s the inner layer, ...

A new study published in Nature traces the evolutionary origin of human teeth to sensory structures found on the exoskeletons ...

Tooth Pain is older than tooth itself, study revealed, could be traced back to 465 million years in fish’s armored skin ...

L. Bernal et al./Science Advances 2021 The odontoblasts in this mouse tooth are coloured bright green on this scan Enamel has no feeling, unlike the next layer dentine. The dentine connects to the ...

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

The tubules (shown in green) are filled with dentine, the same material that makes up the sensitive inner layer of modern teeth. In red is the vascular system which would have housed the nerves in ...