Fossils

A pair of Stegoceras on display at the Royal Tyrrell Museum, Alberta, Canada.

How Domed Dinosaurs Grew Up

Dome-headed dinosaurs dramatically reshaped their skulls. How does this affect how we count dinosaur species?

Soft tissue traces of the ankylosaur Tarchia. Black asterisks denote large osteoderms, scale impressions are pointed out by an arrowhead and small ossicles are identified by the arrow.

An In-Depth Look at Ankylosaur Armor

An exceptional ankylosaur preserves the position of ancient armor

The skulls and necks of Majungasaurus (top) and Carnotaurus (bottom) compared.

Carnotaurus Had a Hefty Neck

Could the hefty neck of Carnotaurus explain why this dinosaur had puny arms?

Banjo’s reconstructed hand, with the thumb claw on top

Banjo Gets a Hand

Recently-discovered fossils fill out the arms of one of Australia's formidable predatory dinosaurs

The AMNH skeleton of Styracosaurus, one of the dinosaurs from the upper zone of the Dinosaur Park Formation.

Dinosaur Turnover

Canada's Dinosaur Park Formation is an exceptionally rich fossil boneyard, but what drove the evolution of the different dinosaurs found there?

A speculative restoration of the armored sauropod Agustinia

Armor for Sauropods

Will we ever find out what Augustinia looked like?

The skull of Oviraptor. This fossil was found with fossil eggs, indicating that this parent was brooding over a nest.

Baby Dinosaur Mystery

The dinosaur paleontologists named Oviraptor, “egg thief,” ironically turned out to be a caring mother

The head of Diplodocus, on a reconstruction at the Utah Field House of Natural History.

How Did Diplodocus Eat?

Huge dinosaurs like Diplodocus couldn't chew, so how did they eat?

None

Will We Ever Find All the Dinosaurs?

There are probably hundreds of dinosaurs that paleontologists have yet to discover, but will we ever find all the dinosaurs?

None

On the Trail of a Weird Dinosaur

A rare footprint places a strange group of dinosaurs in Cretaceous Alaska

The skeleton of Sciurumimus, seen under UV light. You can see traces of protofeathers alon the dinosaur’s tail.

Did All Dinosaurs Have Feathers?

A newly-discovered fossil raises the possibility that all dinosaur lineages were fuzzy

None

A Sneak Peek at a New Dinosaur

Argentina unveils a new dinosaur to celebrate the country's bicentennial

None

Will We Ever Find Dinosaurs Caught in the Act?

Is there any chance that paleontologists will one day find mating dinosaurs?

A reconstructed Acrocanthosaurus at the North Carolina Museum of Natural Sciences.

In the Steps of a Hungry Acrocanthosaurus

A special set of footprints may record a dinosaur attack in progress

A restoration of Repenomamus snacking on a young Psittacosaurus

When Mammals Ate Dinosaurs

Our ancestors and cousins didn't all live in the shadows of the Mesozoic world—some were burly carnivores

A reconstruction of the Edmontosaurus skull LACM 23502, with a beak based on a natural mold.

Shovel-Beaked, Not Duck-Billed

A rare fossil shows that duck-billed dinosaurs were not so duck-like after all

Even familiar dinosaurs, such as this Allosaurus at Utah's Cleveland-Lloyd Dinosaur Quarry, still raise many questions about dinosaur biology.

The Dinosaurs They are a-Changin’

Paleontologists are describing new dinosaurs at an unprecedented pace, but there's much we still don't know about the biology of these animals

The widening of the canal has exposed a trove of fossils, including megalodon teeth.

A New Opportunity at the Panama Canal

The ongoing expansion of the waterway has given Smithsonian researchers a chance to find new fossils

Actual dinosaurs were discovered at Dinosaur National Monument a century ago. Starting in 1909, fossil hound Earl Douglass found fantastic remains of gigantic dinosaurs.

America's Monumental Dinosaur Site

For the first time in years, visitors can once again see the nation's most productive Jurassic park

Archosaur skull changes (juveniles on the left, adults on the right). While there was a significant amount of change between the juvenile and adult skulls of alligators (top) and the non-avian dinosaur Coelophysis (middle), there was little change between the juvenile and adult skulls of early birds such as Archaeopteryx (bottom) and their closest dinosaur relatives.

Birds Have Juvenile Dinosaur Skulls

The peculiar way birds grow up got its start among feathery non-avian dinosaurs

Page 34 of 54