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 ...

Researchers analyzed 200 fossil teeth from ancient mammals in China, revealing how they adapted and diversified after the ...

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

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

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 ...

Human activity may be triggering the greatest extinction event since the asteroid impact that wiped out the dinosaurs, according to scientists. Their study, based on a review of decades of research on ...

Sixty-six million years ago, Earth's balance shifted in a single strike. The asteroid impact set off firestorms, blocked out sunlight, and left food chains in collapse. Dinosaurs and countless other ...

A unique cache of plant fossils from volcanic deposits in New Mexico contradicts the common narrative that flowering plants ...

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

Dinosaurs ruled the Earth for over 150 million years. Compared to the mere 4–6 million years that scientists believe humans and their earliest ancestors have been on the planet, it wouldn't be ...