A dinosaur with around 500 working teeth and the ability to replace each one every 14 days remains one of the most unusual herbivores ever identified. Nigersaurus taqueti, which lived about 105 ...

Add Yahoo as a preferred source to see more of our stories on Google. The cast of the skull of Nigersaurus. The fossil skull of Nigersaurus was one of the first dinosaur skulls to be digitally ...

A 150-million-year-old fossil discovered in China reveals a bizarre early bird with sharp teeth, a dinosaur-like claw, and a ...

Add Yahoo as a preferred source to see more of our stories on Google. Instead of relying only on marine sediments or ancient soils to piece together past climates, researchers are now using oxygen ...

All therizinosaurs had the same basic look to them. They had long necks, little heads, walked on two legs, and had massive ...

A recent study by Keifeng Yu and his colleagues, published in Acta Geologica Sinica, describes the discovery and identification of 12 new dinosaur teeth from the Upper Cretaceous Nenjiang Formation.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Dinosaur teeth discovered by a now retired quarryman have revealed a ...

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 ...

Learn how researchers can determine what the atmosphere was like when dinosaurs roamed the Earth from the isotopes in their teeth. Trapped in the enamel of fossilized dinosaur teeth is a fascinating ...

Researchers investigated the Mesozoic Era's atmosphere and vegetation by studying oxygen isotopes in dinosaur tooth enamel. This is a replica of a Stan™ T. rex tooth. Photograph: Thomas Tütken.

This article predates the current owners of Science Blog. It has not been reviewed under the current editorial process and is kept as part of the archive. A snapshot of life 135 million years ago in ...