Tyrannosaurus rex, one of the largest meat-eating dinosaurs on the planet, had an air conditioner in its head, suggest scientists who are challenging over a century of previous beliefs.

Australian researchers have found a new species of pterosaur in outback Queensland.

A college student made the discovery of a lifetime on a recent paleontology dig when he unearthed a partial Triceratops skull.

Geology is a big science. The Earth is a large enough place today, but when you stretch the fourth dimension back across many millions of years, the largeness can get out of hand. Because we lose a lot of detail to the ravages of time, it's very difficult for geology to get small again—to tell us about what happened in individual locations or over short periods of time.

People have always known of dinosaurs, though they have called them by many names. Old legends that place Western dragons in caves…

The beginning of the end started with violent shaking that raised giant waves in the waters of an inland sea in what is now North Dakota. Then, tiny glass beads began to fall like birdshot from the heavens. The rain of glass was so heavy it may have set fire to much of the vegetation on land. In the water, fish struggled to breathe as the beads clogged their gills.

Sixty-six million years ago, a giant meteor slammed into Earth off the coast of modern-day Mexico. Firestorms incinerated the landscape for miles around. Even creatures thousands of miles away were doomed on that fateful day, if not by fire and brimstone, then by mega-earthquakes and waves of unimaginable size.

Sixty-five million years ago, an asteroid is believed to have crashed into Earth. The impact wiped out huge numbers of species, including almost all of the dinosaurs. One group of dinosaurs managed to survive the disaster. Today, we know them as birds.

An asteroid slammed down and did away with all the dinosaurs, paving the way for such developments as the human race, capitalism, and posting on the internet: it’s the story we all know and love. Yet if things had shaken out differently—if the asteroid had stayed in its place, and the dinosaurs allowed to proceed with their business—what would things have looked like?

A new species of dinosaur has been discovered, after being misidentified and kept in a museum collection for several decades.

The pterosaur fossil is most closely associated with species from the other side of the world, suggesting these creatures could circumnavigate the globe.

The 10 biggest dinosaurs mistakes

Scary yes or no

Feathered dinosaurs look freaky!

Feather used for sex for dinosaurs??

The real-life fossils belong to a new species of phorusrhacid, giant predators also known as terror birds that once dominated South America.

This is an amazing post-apocalyptic New Zealand dinosaur illustration by Weta concept artist and Dr. Grordbort's creator Greg Broadmore.

An eccentric Australian mining magnate who is building a replica of the ill-fated Titanic has unveiled his latest scheme -- a park of giant robotic dinosaurs. The world's biggest dinosaur exhibit will have 165 life-size animatronic dinosaurs.

Once considered beyond the reach of science, insights into the love lives of these extinct giants are emerging

The studio rolls out the 3D version of Steven Spielberg's 1993 sci-fi adventure on Friday.