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Search results for dentin

Archaeology Jul 31, 2025

Medieval skeletons reveal the lasting damage of childhood malnutrition

Beneath churchyards in London and Lincolnshire lie the chemical echoes of famine, infection and survival preserved in the teeth of those who lived through some of the most catastrophic periods in English history.

Archaeology Jul 11, 2025

Guests at a feast in Iran's Zagros Mountains 11,000 years ago brought wild boars from all across the land

Have you ever stopped by the grocery store on your way to a dinner party to grab a bottle of wine? Did you grab the first one you saw, or did you pause to think about the available choices and deliberate over where you wanted ...

Archaeology Jul 10, 2025

New analysis of the Skhūl I skull: One of the oldest human burials in the world

In 1931, the Skhūl I fossil was uncovered at Mugharat es-Skhūl (the Cave of the Children), also known as Skhūl Cave, Israel. It forms part of the oldest intentional human burials ever discovered, dating back to ca. 140,000 ...

Earth Sciences Jul 9, 2025

Teeth record hidden history of your childhood climate and diet

The climate we live in affects our lives in profound ways: hot summers, cold winters, dry spells and wet weather all leave their mark.

Molecular & Computational biology Jun 18, 2025

Analysis of tooth rings uncovers smoking's enduring impact, offering new clues for forensic science

Evidence of the permanent impact of smoking on people's teeth has been uncovered by researchers for the first time. Researchers from Northumbria University have discovered that smokers have telltale signs of their smoking ...

Plants & Animals Jun 18, 2025

50 years after 'Jaws,' researchers have retired the man-eater myth and revealed more about sharks' amazing biology

The summer of 1975 was the summer of "Jaws."

Other May 31, 2025

Saturday Citations: Wages vs. welfare; origins of teeth; a search for primordial black holes

A new study of the Gobi Wall in the Gobi highland desert of Mongolia reveals a multifunctional role beyond defense; data from the James Webb Space Telescope is bringing physicists closer to resolving the Hubble tension; and ...

Paleontology & Fossils May 25, 2025

Teeth hurt? It could be because of a 500-million-year-old fish

Ever wondered why our teeth are so sensitive to pain or even just cold drinks? It might be because they first evolved for a very different purpose than chewing half a billion years ago, a study suggested Wednesday.

Evolution May 21, 2025

Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find

Anyone who has ever squirmed through a dental cleaning can tell you how sensitive teeth can be. This sensitivity gives important feedback about temperature, pressure—and yes, pain—as we bite and chew our food. However, ...

Cell & Microbiology Apr 25, 2025

Pigs can regrow their adult teeth. What if humans could, too?

When children lose their baby teeth, there is an adult set already growing beneath the gums, ready to emerge. But if we lose our permanent teeth, there aren't any more waiting in the wings. Right now, the options for replacing ...

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