Paleontologists

An illustration of the large, feathered Anzu wyliei depicts several striking anatomical features—its long tail, feathered arms, toothless beak and a tall crest on the top of its skull.

Scientists Discover a Large and Feathered Dinosaur that Once Roamed North America

The 'Anzu wyliei' species looks like a cross between a chicken and a lizard

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What Prehistoric Reptile Do These Three-foot Claws Belong To?

Claws once thought to belong to a giant turtle turned out to be from one of the weirdest dinosaurs ever found

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What is Genyodectes?

A set of partial jaws hold an important place in the history of South American paleontology, but what sort of dinosaur do they represent?

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Stegosaurus Plate Debate

Stegosaurus is immediately recognizable for its prominent plates, but why did these structures actually evolve?

The upper and lower jaws of Duriavenator, illustrated when they were thought to belong to Megalosaurus, in A History of British Fossil Reptiles Vol. II.

Finding Duriavenator

Jaws once thought to be from Megalosaurus belong instead to this little-known species

Fossil teeth, found by Ferdinand Hayden in Montana, which Joseph Leidy attributed to the dinosaur “Trachodon.”

Finding Hayden’s Dinosaurs

Thanks to some historical detectivework, a pair of researchers has relocated one of the earliest recognized dinosaur sites in the American west

A mount of Cetiosaurus at the New Walk Museum in Leicester. While the neck of this sauropod is almost completely known, no skull has ever been described.

C is for Cetiosaurus

Sauropods are iconic dinosaurs, but the first of their kind ever found was initially thought to be a huge crocodile

The peculiar, high-spined specimen that represents Becklespinax (left), and two possible restorations of the dinosaur by Darren Naish (right).

B is for Becklespinax

For over a century and a half, paleontologists have been confounded by the sail-backed carnivore Becklespinax. What did this dinosaur really look like?

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The Bat-Winged Dinosaur That Never Was

Just when naturalists began to suspect that birds might be dinosaurs, one researcher put forward a truly strange idea of what early bird ancestors would have looked like

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Doing the T. rex Stretch

Did T. rex use its tiny arms to do push-ups?

Thomas the T. rex, a lovely reconstruction at the Natural History Museum of Los Angeles.

Long Live the King

Paleontologists have named scores of dinosaurs, but why is T. rex our favorite?

Fossil swim tracks indicate that theropods similar to this Megapnosaurus at least occasionally swam in prehistoric lakes and rivers.

Did Dinosaurs Swim?

Carnivorous theropod dinosaurs were thought to be hydrophobic, but swim tracks show that these predators at least sometimes took a dip in lakes and rivers

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Tussling Over Thecodontosaurus

The history of Thecodontosaurus, the fourth dinosaur ever named, is a tangled tale of paleontologist politics

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Birmingham’s Smoking Dinosaurs

In 1938, awful dinosaurs roamed Birmingham, England

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New Wrinkle in Tarbosaurus Kerfuffle

The man who prepared an illicit tyrannosaur specimen claims that the dinosaur is rightly his

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The Double Dinosaur Brain Myth

Contrary to a popular myth, dinosaurs didn't have butt brains

A fragment of the lower jaw of Megalosaurus, the first dinosaur to be scientifically named in 1824. Long before this, though, people puzzled about the nature of dinosaur bones.

A Brief History of Hidden Dinosaurs

Even though scientific interest in dinosaurs is relatively new, our species have been puzzling about the prehistoric creatures for centuries

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

Disease has often been blamed for the extinction of the last dinosaurs, such as this Edmontosaurus at the Natural History Museum of Los Angeles.

Disease and the Demise of the Dinosaurs

Cataracts, slipped discs, epidemics, glandular problems and even a loss of sex drive have all been proposed as the reason non-avian dinosaurs perished

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

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