Paleontologists

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

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 original AMNH mount of Brontosaurus, reconstructed in 1905

Brontosaurus Returns

Paleontologists may have killed the dinosaur a century ago, but it was revitalized in the King Kong remake

A gliding Stegosaurus

The Fantastic Gliding Stegosaurus

Stegosaurus was as aerodynamic as a brick, but one writer thought the prickly dinosaur used its huge plates for gliding

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Tarbosaurus on Trial

An almost certainly poached tyrannosaur skeleton kicks off a legal dispute over Mongolia's fossil heritage

The microstructure of Smets' "dinosaur" revealed the fossils to be petrified wood.

The Demise of a Wooden Dinosaur

A Victorian-era naturalist thought he'd found a new kind of dinosaur, and he threw a fit when other naturalists disagreed

Camarasaurus, as envisioned by Erwin Christman

Wading With Sauropods

Before the Dinosaur Renaissance moved sauropods out of the swamps, paleontologists recognized that some of these dinosaurs were better suited to land

The original AMNH mount of Brontosaurus, reconstructed in 1905

Why Brontosaurus Still Matters

Though it never actually existed, Brontosaurus is an icon of just how much dinosaurs have changed during the past century

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Arthur Conan Doyle’s Ethereal Dinosaurs

Prior to the 1925 debut of The Lost World, the novelist pulled a stunt to make people think dinosaurs might still be alive in a distant jungle

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Excavating the River of Giants

Rare footage shows how paleontologist R.T. Bird diverted a river to excavate a set of Texas dinosaur tracks in 1938

The backside of Diplodocus, photographed at the Utah Field House of Natural History

How Did the Biggest Dinosaurs Get it On?

Of all the dinosaur mysteries, how dinosaurs like the 23-ton Apatosaurus mated is one of the most perplexing

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