Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

A collection of fossil teeth from southern China is shedding new light on one of the biggest turning points in Earth’s ...

Learn more about what fossilized teeth can tell us about the rise of mammals after the extinction of dinosaurs.

Scientists say the "unique" fossil find shows they were in fact blooming 10 million years before dinosaurs were wiped out.

The fossil record has historically included few fish for about 10 million years after the mass extinction event 65 million ...

A mysterious countdown sends one human into the final days of the dinosaur era, where survival becomes almost impossible long ...

Rocks formed immediately before and after non-avian dinosaurs went extinct are strikingly different, and now, tens of millions of years later, scientists think they’ve identified the culprit—and it ...

An asteroid strike 66 million years ago caused millions of species to go extinct—including many mollusks. By studying the impacts of this ancient event, scientists hope to ensure that mussels, ...

The Cretaceous Era—roughly 145 to 66 million years ago—was the last hurrah of the dinosaurs. A massive asteroid impact brought them to a violent end, but there’s more to the story. The Cretaceous ...

A badly mangled dinosaur skull, once forgotten in a drawer, turned out to be a rare and important discovery. Reconstructed by a Virginia Tech student, it revealed a new species of early carnivorous ...

Silhouette of the Tyrannosaurus called Stan. This "tyrant lizard king," was excavated and prepared by the Black Hills Institute. © Louie Psihoyos/CORBIS What ...