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Dinosaurs

Either way, they definitely didn't have indoor plumbing.

Cool Finds

We Know Dinosaurs Pooped, But Did They Pee Too?

Researchers are trying to figure out whether dinosaurs combined feces and urine or not

Some dinosaurs, such as the (Caudipteryx zoui) above, had brightly colored feathers. New research suggests that modern birds inherited their own color varieties from their feathered dinosaur ancestors.

Colorful Plumage Began With Feathered Dinosaurs

The pigment patterns scientists use to predict ancient animal colors started with feathered dinosaurs and led to vibrant color in birds

New Research

Attach a Tail to a Chicken and Watch a Mini Dinosaur Strutting Around

Sticking a fake dinosaur tail onto a living chicken helps researchers approximate how those animals once walked and moved

Typical entombment poses of some of the Jehol Biota’s animals (a Psittacosaurus (a) and primitive crow-like birds (b and c))—the same poses displayed by other victims of erupting volcanoes throughout history.

New Research

The “Pompeii of Animals” Shows Dinosaurs, Mammals and Early Birds in Their Death Throes

A lethal volcanic explosion is identified as the culprit behind a mysterious mass death of creatures that took place around 125 million years ago

On Jan. 16, the National Museum of Natural History unveiled “Tyrannosaurus rex: Say Hello to the Nation’s T. rex!” which features the cast of a T. rex skull

The King of All Fossils is Coming to Smithsonian in April

One of the most complete T. rex skeletons ever found will be on display at the National Museum of Natural History

Dinosaur Poop Is Harder to Find Than It Should Be

Why don’t archaeologists find fossilized poop all over the place? In a word: roaches

Silhouette of the Tyrannosaurus called Stan. This "tyrant lizard king," was excavated and prepared by the Black Hills Institute.

The Top Ten Weirdest Dinosaur Extinction Ideas

Paleontologists, both professional and amateur, have dreamed up some bizarre explanations of how the dinosaurs disappeared from Earth

Close inspection showed that a T. rex tooth was lodged in a hadrosaur’s vertebrae, the result of an ancient attack gone awry.

Caught in the Act: Scientists Find A T. Rex Tooth Stuck in a Hadrosaur Tail

The ancient attack proves once and for all that the T. Rex was a hunter, not just a scavenger

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Dinosaur Extinctions, Titanic Deaths and More Questions From Our Readers

You asked our curators, they answered

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What Happened to the Wizard of Oz Costumes and More Great Questions From our Readers

Apollo 11 souvenirs, Walt Whitman’s politics, and dinosaur DNA were among the subjects you wanted to know more about

The Green River carves the landscape at Mitten Park fault, exposing rock layers formed more than a billion years ago – long before the dinosaurs.

Evotourism ®

Welcome to America’s Dinosaur Playground

Countless bones and a billion years of geological action make Dinosaur National Monument the go-to park for fossil finds

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The Most Exciting (and Frustrating) Stories From This Year in Dinosaurs

From feathers to black market fossil controversies, 2012 was a big year for dinosaurs

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From Golf Courses to Petting Zoos, Dinosaurs Get in the Way

Recently unveiled dinosaur sculptures are frustrating eyesores to some and tourist attractions to others

The “Morphotype 1″ tunnel complex: points marked “a” represent tunnels, and points marked “b” signify vertical shafts.

Did Early Dinosaurs Burrow?

Were enigmatic, 230-million-year-old burrows created by dinosaurs?

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Beyond the Childhood Dinosaur Phase: Why Dinosaurs Should Matter to Everyone

Dinosaurs can help us unlock essential secrets about the history of life on Earth

A reconstruction of Irritator

I is for Irritator

The name of the long-snouted dinosaur Irritator hints at the troubled history surrounding the spinosaur’s classification

Did Deinonychus and other “raptors” use their foot claws to restrain prey?

How Did Raptors Use Their Fearsome Toe Claws?

Claw Shapes: A Glimpse Into the Lifestyle of Raptors?

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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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Scientists Discover Oldest Known Dinosaur

A fragmentary skeleton pins the emergence of dinosaurs more than 10 million years earlier than previously thought

A cautious Camptosaurus approaches a resting Allosaurus. Even though the carnivore undoubtedly hunted the herbivore at times, the two weren’t constantly at war with each other.

How I Learned to Stop Worrying and Love Dinosaurian Oddities

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