Dire wolves, brought back into the spotlight through recent cloning efforts, are often portrayed as the greatest of ...

The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles ...

Rhinos that flourished across much of North America 12 million years ago gathered in huge herds, according to a new study by ...

In the vast and mysterious depths of prehistoric oceans, colossal creatures once ruled the waters. These marine giants, such ...

(NEXSTAR) — This week, a Texas-based biosciences company, which aims to “de-extinct” animal species of the past (and ones ...