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dinosaurs

What Is a Dinosaur?
Image: iStockphoto.com/Andrew_Howe

What Is a Dinosaur?

Dinosaurs ruled Earth for more than 160 million years before dying out 65 million years ago. The fossils they left behind fascinate us — from fearsome predators to odd-looking plant eaters.

Explore the different types of dinosaurs and discover what we do and don't know about them.

Smithsonian
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Dino Dig: Welcome to Hell Creek

Dino Dig: Welcome to Hell Creek

Why is Hell Creek, Montana, such an attraction for paleontologists every summer? Because tens of millions of years ago, dinosaurs thrived in this area. More...

Video
Science Channel
High School Student Discovers Complete Baby Dinosaur Fossil

High School Student Discovers Complete Baby Dinosaur Fossil

When Kevin Terris was 17, he made an unbelievable find: the "youngest and most complete" skeleton of a baby Parasaurolophus — a fossil missed by two paleontologists just days earlier. More...

Profile
circa
PacSci-Doku: Chicken from Hell

PacSci-Doku: Chicken from Hell

It's hard to forget a nickname like "Chicken from Hell." But do you know the name of this recently discovered 11-foot, 500-pound dinosaur? If not, solve this Sudoku-like puzzle to find out! More...

Game
Pacific Science Center
Meet Dreadnought, Largest Dinosaur in the World

Meet Dreadnought, Largest Dinosaur in the World

This dinosaur's "astoundingly huge" size is behind its name, which means "fear nothing." Meet the dinosaur that weighed as much as 12 African elephants — and wasn't even fully grown! More...

Article
Smithsonian
T. Rex Blood?

T. Rex Blood?

You can't get blood out of a rock. And since fossils are mostly rock, it limits what we can learn about dinosaurs. Some recent discoveries are changing that. More...

Video
NOVA/PBS
Virtual Dinosaur Dig

Virtual Dinosaur Dig

This interactive allows you to feel the thrill of being a paleontologist, finding a virtual fossil, excavating it, and finding out more about the characteristics of the specimen you discovered. More...

Interactive
Smithsonian
What Dinosaur Are You?

What Dinosaur Are You?

If you were a dinosaur, what kind would you be? Find out with this activity from the Natural History Museum in London. More...

Interactive
Natural History Museum, London
Battle of the Giants: Dinosaurs

Battle of the Giants: Dinosaurs

Create your dinosaur and then battle it out. Do you have the baddest dinosaur of them all? More...

Game
Addicting Games
Bizarre Dinosaurs

Bizarre Dinosaurs

Over the course of 160 million years there were many types of dinosaurs, some big, some small, and some very strange. Explore some of the more bizarre dinosaurs in this image gallery. More...

Images
National Geographic
A Career in Paleontology

A Career in Paleontology

Paleontologists study fossils left by dinosaurs and other prehistoric plants and animals. Find out more in this career guide from the Paleontological Society. More...

Profile
The Paleontological Society
BLAST into the Past to Identify T. Rex’s Closest Living Relative

BLAST into the Past to Identify T. Rex’s Closest Living Relative

Dinosaurs died out 65 million years ago, but something has survived. Now you can use a real DNA sequence from a T. rex to find if it matches any modern animals. More...

Activity
Science Buddies
Curse of T. Rex: Where to Dig

Curse of T. Rex: Where to Dig

There are plenty of dinosaur fossils still to be found, but where should you look? Let NOVA help you find the best place to start digging with this interactive site. More...

Interactive
NOVA/PBS
Dinosaur Classification

Dinosaur Classification

With just a few bones, how can you know what dinosaur they came from? Find out how paleontologists classify these ancient animals. More...

Article
National Park Service
Southern “Cousin” of T. Rex Found

Southern “Cousin” of T. Rex Found

Until recently fossils of dinosaurs like Tyrannosaurus rex were only found in the Northern Hemisphere. Now scientists have found a relative south of the equator. More...

Article
BBC
Interview with Dr. Mary R. Dawson

Interview with Dr. Mary R. Dawson

Dr. Mary R. Dawson has been a paleontologist for 50 years! Find out about her work and how the field has changed over time. More...

Profile
Prehistoric Planet
PacSci-Doku: Dreadnought

PacSci-Doku: Dreadnought

Dreadnoughtus schrani was a true heavy weight in the dinosaur world — more than 8 times heavier than T. rex. Solve this Sudoku-like puzzle to find out where the species roamed. More...

Game
Pacific Science Center
Types of Dinosaurs

Types of Dinosaurs

We talk a lot about dinosaurs as a group, but there were many different types. From Giganotosaurus to Velociraptor, explore dinosaur families. More...

Article
Discovery
What’s Your Dinosaur IQ?

What’s Your Dinosaur IQ?

How much do you really know about dinosaurs and the time they lived in? Find out. More...

Interactive
National Geographic
Why Did Mammals Survive When Dinosaurs Perished?

Why Did Mammals Survive When Dinosaurs Perished?

We know that most dinosaurs were wiped out about 65 million years ago in a catastrophic event. But why did mammals survive and thrive? More...

Article
Smithsonian
Cockroaches Dined on Dinosaur Poop

Cockroaches Dined on Dinosaur Poop

We know that cockroaches today aren’t picky eaters. Way, way back, these ancient insects adapted to the arrival of the dinosaurs by developing, um, a taste for their waste. More...

Article
National Geographic
New Contender for First Bird

New Contender for First Bird

The Aurornis xui, a bird-like dinosaur lived in China more than 150 million years ago. Find out why its discovery shook up the avian family tree. More...

Article
Nature
What Killed the Dinosaurs?

What Killed the Dinosaurs?

Scientists don't know for sure what caused the "great dying" of dinosaurs at the boundary between the Cretaceous (K) and Tertiary (T) periods. Find out why it's so tough to crack the case. More...

Article
University of California Museum of Paleontology

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