Related topics: dinosaurs · fossil

Researchers determine dinosaur replaced teeth as fast as sharks

A meat-eating dinosaur species (Majungasaurus) that lived in Madagascar some 70 million years ago replaced all its teeth every couple of months or so, as reported in a new study published today in the open-access journal ...

Research team documents new discovery of dinosaur relative

Films such as those in the "Jurassic World" series feature a range of large prehistoric creatures, but Kwanasaurus has been absent from their plots. That's because the significantly smaller reptilian herbivore was only recently ...

Details of dental wear revealed

The teeth of mammals experience constant wear. However, the details of these wear processes are largely unknown. Researchers at the University of Zurich have now demonstrated that the various areas of herbivores' teeth differ ...

First skeletal remains of Phoebodus found in Morocco

An international team of researchers has found the first skeletal remains of Phoebodus—an ancient shark—in the Anti-Atlas Mountains in Morocco. In their paper published in Proceedings of the Royal Society B, the group ...

How do piranhas replace their sharp teeth?

Piranhas and their herbivorous cousins pacus have distinctive teeth used to tear through tough food. A recent paper by Matthew Kolmann, a postdoctoral fellow in the Columbian College of Arts and Sciences Department of Biological ...

What wolves' teeth reveal about their lives

UCLA evolutionary biologist Blaire Van Valkenburgh has spent more than three decades studying the skulls of many species of large carnivores—including wolves, lions and tigers— that lived from 50,000 years ago to the ...

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