When you think of dinosaurs, do you still imagine giant gray scaly beasts that went extinct? Get ready to have your mind ...

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 ...

About 66 million years ago, dinosaurs ruled the Earth in a very different environment than we see today, with some creatures ...

In all, 75% of Earth's species went extinct, including the nonavian dinosaurs. So how did some animals ‪—‬ including species ...

These ancient arthropods were thriving hundreds of millions of years before dinosaurs, and they kept their design through every mass extinction that followed. A hard shell, a body plan that worked, ...

Dinosaurs have always been around in the human imagination. Whether it is through blockbusters like Jurassic Park or ...

When the big asteroid hit Mexico 66 million years ago, it set off wildfires, tsunamis and massive clouds of dust that darkened the skies, killed much of Earth’s plant life and triggered a chain of ...

Scientists studied ancient fungal spores and discovered Earth may already have been under stress before the asteroid wiped out the dinosaurs.

In the Triassic, the modern animals we know were just beginning to diversify into a menagerie of forms and body plans that ...

In the world of biology, being declared extinct is usually a permanent sentence, but nature occasionally loves to prove us wrong. These incredible animals, often referred to as “Lazarus species,” ...

(CNN) — Tens of millions of years ago, an apex predator resembling a giant crocodile stalked the humid freshwater floodplains of southern Patagonia. Measuring up to 11.5 feet (3.5 meters) long and ...