Just as human juveniles happen to lose their baby teeth to make way for much larger and stringer adult teeth, scientists now believe that dinosaurs may have followed a similar process as they matured.

Last summer, while spending a day with paleontologist Joe Peterson and his crew at the Cleveland-Lloyd Dinosaur Quarry, I was lucky enough to find a dinosaur tooth. The shiny fossil had once fit into ...

Fossilized dinosaur teeth are turning out to be much more than ancient leftovers — they’re helping scientists figure out what these massive animals ate, how they coexisted, and even how far they might ...

A collection of dinosaur teeth hailing back to the Cretaceous and Jurassic periods has given scientists a new window into the world's prehistoric climate. By studying an isotope of oxygen in the ...

The world’s understanding of the Tyrannosaurus rex as a fearsome-looking predator with a face of razor-sharp fanged teeth may soon need to shift. Similar to humans, the T. rex had lips that concealed ...

New research led by Michael D. D'Emic, an assistant professor of biology at Adelphi University, indicates that a 70-million-year-old dinosaur shed and replaced its teeth like a shark about every two ...

Scratches on dinosaur teeth could reveal what they really ate. Dental microwear texture analysis (DMTA) has now been used to infer the feeding habits of large theropods, including Allosaurus and T.

A dinosaur that resembled a penguin-goose mix with too many teeth has been discovered in the depths of the Gobi Desert. The near-complete skeleton was unearthed in 2008 from the Baruungoyot Formation, ...

At the end of the Cretaceous, the duck-billed hadrosaurs were the most advanced herbivores on Earth. New research has revealed just how voracious these dinosaurs were, with their average tooth worn ...