Eoraptor lunensis lived roughly 230 million years ago, at a time when dinosaurs were small and rare.

Growing Quickly Helped the Earliest Dinosaurs

Rapid growth also helped other ancient reptiles flourish in the aftermath of mass extinction.
Hesperornis on the shoreline.

A Brief Guide to Birdwatching in the Age of Dinosaurs

Archaeopteryx and Hesperornis should be on the lists of any dino bird watcher.
Eoneophron infernalis

A Fresh Hell (Chicken)

A newly identified “Hell chicken” species suggests dinosaurs weren’t sliding toward extinction before the fateful asteroid hit.
two tyrannosaurus rex fighting on a yellow colored background

Five Things You Probably Have Wrong about the T. rex

How well do you really know Tyrannosaurus rex, the so-called Tyrant Lizard King?
A cartoon of a T Rex holding a boom box

Take These Teenage Dinosaurs Seriously!

Paleontologists recently solved the riddle of whether two fossil specimens were young T. rexes or a whole different species.
An unknown paleontologist, 1860

The Dinosaur Bone Wars

1877 was a banner year for American dinosaurs: three major finds in the West turned the region into a "paleontologist's El Dorado."
The Lost World (1925) - film poster

The 1925 Dinosaur Movie That Paved the Way for King Kong

During a slow day at work, a young marble cutter named Willis O’Brien began sculpting tiny T-Rex figurines.
An ancient supernova

Can a Supernova Cause Mass Extinction?

Since the 1950s, scientists have been proposing supernovae as catalysts for mass extinctions. But can it be proven?
Paleontologist dinosaur bones

The Controversy Around the First Museum Dinosaurs

Dinosaur bones on display at the American Museum of Natural History always balanced conveying objective truth with promoting science to the public.
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Getting to Know Pterosaurs

Everyone loves dinosaurs. Perhaps less well-known are their cousins, the pterosaurs. Pterosaurs could fly, and were closely related ...