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Dinosaurs: Most Popular Articles

These articles are the most popular over the last month.
We're Going to Need a Bigger Boat - 10 Facts...
Megalodon was, by far, the largest shark that ever lived, making the Great White Shark seem like a guppy. But how much do you really know about this terrifying undersea predators? Here are 10 Megalodon facts you can share with your friends.
From Sauropods to Tyrannosaurs, Your Guide to...
How many types of dinosaurs were there? Here's a list of the 15 main dinosaur types, ranging from ankylosaurs to tyrannosaurs, complete with links to additional information.
A Complete, A to Z List of Dinosaurs
A complete, alphabetical list of every dinosaur that ever lived during the Triassic, Jurassic and Cretaceous periods.
Don't Believe Jurassic World - Velociraptor...
Next to Tyrannosaurus Rex, Velociraptor is the world's most famous meat-eating dinosaur. Here are 10 facts about this Cretaceous carnivore that you may (or may not) have gleaned from repeated viewings of Jurassic Park and Jurassic World.
How Much Do You Know About the Saber-Tooth Tiger?
It wasn't technically a tiger, but the Saber Tooth Tiger (aka Smilodon) was one of the most fearsome predators of the Pleistocene epoch. Here are 10 facts you may or may not have known about this big-toothed menace.
These Dinosaurs Were Bigger Than the House You...
How heavy was Argentinosaurus? What was the wingspan of Quetzalcoatlus? Read this list of the 20 biggest dinosaurs (as well as non-dinosaur reptiles like pterosaurs, pliosaurs and therapsids) to find out.
If You See These Dinosaurs in a Dark Alley - Run!
Not all dinosaurs were equally deadly--some were built for exceptional mayhem, sporting huge teeth, sharp claws, and (occasionally) even the ability to outwit their prey. Here's a list of the 10 fiercest, deadliest, and just plain most dangerous dinosaurs. If you see one of these guys on the street--run!
Wild and Woolly Facts About the Wild and Woolly...
It wasn't the biggest Mammoth species, but the Woolly Mammoth is still the most famous proboscid of the Pleistocene epoch. Here are 10 facts you may or may not have known about this huge, shaggy pachyderm.
10 Basic Facts Everyone Should Know About...
Did you know that most dinosaurs were vegetarians? Or that dinosaurs lived alongside the earliest mammals? Here are 10 important dinosaur facts that every person should know.
The Dinosaurs of the Triassic, Jurassic and...
What does it mean to say that a dinosaur lived in the Triassic, Jurassic, or Cretaceous period? Here's a description of these three stretches of the Mesozoic Era, and the prehistoric plants and animals that set them apart.
Here's Why Crocodiles Haven't Changed Much in...
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Of all the reptiles
Why There's No Such Thing as a Pterodactyl, and...
There's no such thing as a pterodactyl, a word many people use to refer to either Pteranodon or Pterodactylus. Here are 10 facts you should know about these famous pterosaurs.
How Much Do You Really Know About T. Rex?
How much do you really know about Tyrannosaurus Rex, the king of the dinosaurs? Here are 10 fascinating facts about the apex predator of late Cretaceous North America.
Spinosaurus - Bigger than T. Rex, and Every Bit...
Spinosaurus is the largest carnivorous dinosaur yet identified, bigger (and possibly meaner) than T. Rex and on a par with Giganotosaurus. Here are 10 facts you may or may not have known about this sail-backed predator.
Meet the Dire Wolf, Your Favorite "Game of...
The largest canine that ever lived, the Dire Wolf was the scourge of Pleistocene North America. Here are 10 facts you may or may not have known about this fierce predator.
How Can You Tell There's a Stegosaurus in Your...
Why did the T. Rex cross the road? How can you tell when there's a Stegosaurus in your refrigerator? Read this collection of dinosaur jokes and riddles to find out!
Why the Tasmanian Tiger Wasn't a Tiger, and...
The Tasmanian Tiger wasn't really a tiger, but a dog-like marsupial that went extinct in the 20th century. Here are 10 facts you may or may not have known about this striped, pouched predator.
10 Big Cats That Have Gone Extinct in Modern...
The last 10,000 years have witnessed the extinction of a large number of lions, tigers and cheetahs, with many species surviving well into the 19th or early 20th centuries. Here are the 10 most notable big cats that have gone extinct in historical times.
Velociraptor, Shmelociraptor - There Were a...
Among the most feared dinosaurs of the Mesozoic Era, raptors were closely related to modern birds. Here's a look at how paleontologists classify raptors, as well as profiles of famous genera ranging from Achillobator to Velociraptor.
How Much Do You Really Know About Triceratops?
It's impossible to mistake Triceratops for any other dinosaur--but very possible to hold some mistaken notions about this famous plant eater. Here are 10 facts you may (or may not) have known about Triceratops.
Giganotosaurus - Bigger than T. Rex, But Still...
Giganotosaurus is rapidly gaining on T. Rex as the most popular meat-eating dinosaur. Here are 10 facts you may or may not have known about this terrifying predator of the late Cretaceous period.
Raptorex? Iguanacolossus? These Dinosaurs Have...
Some dinosaurs have better names than others--mostly because some paleontologists have more imagination than others. Here's a list of the 10 most impressive dinosaur names, ranging from Anzu to Tyrannotitan.
Meet Your Great, Great, Great Grandma - A Tiny,...
It's not quite true that mammals succeeded the dinosaurs--they lived right alongside these lumbering beasts, in small, quivering, furry form, all through the Mesozoic Era. Here's a look at the evolution, anatomy and survival strategies of the first mammals of the Triassic, Jurassic and Cretaceous periods.
Meet Deinonychus, the Real Star of Jurassic World
Velociraptor gets all the press, but it was another raptor, Deinonychus, that really stole the show in Jurassic Park. Here are 10 facts you may or may not have known about this vicious, feathered dinosaur.
How Much Do You Know About Brachiosaurus?
One of the largest dinosaurs on earth during the Jurassic period, Brachiosaurus has become the poster genus for huge, slow-witted sauropods. Here are 10 facts you may or may not have known about this long-necked, long-tailed plant eater..
Meet Titanoboa, the World's Biggest Prehistoric...
How much do you know about Titanoboa, the world's biggest prehistoric snake? This ten-step slideshow will tell you all about this snake's diet, behavior, and general overall giganticness.
How Much Do You Really Know About Dilophosaurus?
Dilophosaurus didn't even remotely resemble its portrayal in Jurassic Park--which you can learn by reading these ten fun and interesting facts about this meat-eating dinosaur.
Witness the Slow, Slow Parade of Pachyderm...
Modern elephants belong to a long and distinguished evolutionary line that dates back 60 million years, to shortly after the extinction of the dinosaurs. Here's what we know about the evolution of elephants, along with profiles of prehistoric genera ranging from Amebelodon to Tetralophodon.
These 20 Creatures Could Fit in a Prehistoric...
Some dinosaurs and prehistoric animals were very, very small rather than very, very big. Here's a list of the 20 tiniest ancient creatures, according to our current state of knowledge.
Why Your Dog's Pedigree Goes Back 40 Million...
Most people know the end of the story of dog evolution--when wolves were domesticated by early humans. The fact is, though, that prehistoric dogs roamed the plains of North America for tens of millions of years before humans appeared on the scene. Here's everything you need to know about prehistoric dogs and dog evolution.
Why Did T. Rex Have Such Tiny Arms?
As relentless a killing machine as T. Rex was, this dinosaur was still equipped with tiny, almost vestigial arms and hands. Why?
The 10 Freakiest Dinosaurs of the Mesozoic Era
Not all dinosaurs sported the same plain-vanilla body plans; some stood out even by the bizarre standards of the Mesozoic Era, with strange adaptations that continue to puzzle paleontologists to the present day. Here's our pick of the 10 weirdest dinosaurs that ever lived.
The Long, Slithering Story of Snake Evolution
The origin of snakes is shrouded in mystery: the first, fragmentary forms appeared about 150 million years ago, but it's unclear whether they evolved from land- or water-dwelling ancestors. Here's everything we know about snake evolution, complete with a list of the most important prehistoric snakes.
The Slow, Slow, Slow Story of Turtle Evolution
Turtles and tortoises branched off from the mainstream of reptile evolution hundreds of millions of years ago, and have persisted down to the present day with the same basic body plan. Here's everything you need to know about the evolution of turtles and tortoises.
100 Recently Extinct Animals
A list of 100 animals that have gone extinct in historical times, including mammals, birds, reptiles, amphibians, fish, insects and invertebrates.
Meet Allosaurus, the Most Dangerous Dinosaur of...
Allosaurus was one of the most common, and one of the most dangerous, meat-eating dinosaurs of the late Jurassic period. Here are 10 facts you may or may not have known about this agile predator.
How Much Do You Really Know About Mastodons?
Mastodons are comparatively less well-known than Mammoths, but they're equally important from an evolutionary perspective. Here are 10 facts you may or may not have known about these shaggy pachyderms.
These Paleontologists and Fossil Hunters...
If it weren't for the efforts of thousands of paleontologists, evolutionary biologists and geologists, we wouldn't know nearly as much about dinosaurs as we do today. Here's a list of 12 dinosaur hunters who have contributed more to our knowledge of these ancient reptiles than anyone else in the field.
Why Were Dinosaurs 10 Times Bigger than Modern...
Species by species, individual by individual, dinosaurs were bigger than any other land-dwelling animals that ever lived. Here are some theories that just might account for dinosaur gigantism.
These 12 Fossils Changed Dinosaur History
Not every fossil discovered in a dried-up lakebed or arid mountain plain has had an equally profound effect on the course of paleontology. Here are 10 famous discoveries that changed, sharpened, or completely altered the views of working scientists (and the general public) about dinosaurs and other prehistoric reptiles.
How Much Do You Really Know About Stegosaurus?
Stegosaurus is one of the most familiar dinosaurs of the late Jurassic period, but how much do you really know about this plated plant-eater? Here are 10 fascinating facts about Stegosaurus.
How Did Crocodiles Escape the K/T Extinction?
Sixty-five million years ago, dinosaurs, pterosaurs and marine reptiles were wiped off the face of the earth by the K/T Extinction--while their close cousins, the crocodiles, managed to survive this global cataclysm. The question is, why?
Megalodon vs. Leviathan!
Leviathan was a 50-foot-long, 50-ton sperm whale that prowled the waters of Miocene South America. Megalodon was a comparably sized prehistoric shark that occasionally ventured into Leviathan's territory. Who wins in a battle between these two undersea titans?
10 Facts About Utahraptor, the World's Largest...
How much do you really know about Utahraptor, the largest raptor that ever lived? Here are 10 fascinating facts about this plus-sized predator of the middle Cretaceous period.
How Much Do You Know About Dimetrodon?
Often mistaken for a true dinosaur, Dimetrodon was actually a sail-backed reptile that lived tens of millions of years before the first dinosaurs had evolved. Here are 10 fascinating facts about this Permian pelycosaur.
These Dinosaurs Were the Albert Einsteins of...
Pound for pound, dinosaurs were some of the dumbest creatures ever to roam the planet. However, some may even have attained a mammalian level of intelligence. Here's a list of the 10 smartest dinosaurs of the Mesozoic Era, ranging from Allosaurus to Troodon.
10 Facts About Dinosaur Eggs
Did you know that most dinosaur eggs never got the chance to hatch? Or that very few fossilized embryos have been found inside fossilized eggs? Here are 10 surprising facts about dinosaur eggs.
We're Going to Need a Bigger Boat - The Giant...
Sharks are among the oldest and most successful vertebrates on earth; the first species appeared about 420 million years ago and their descendants have survived down to the present day. Here's everything you need to know about the behavior and evolution of prehistoric sharks.
Do You Believe in the Loch Ness Monster? Then...
There are plenty of exaggerations, myths and outright lies circulating about the so-called Loch Ness
300 Million Years Ago, Giant Amphibians Ruled...
During the Carboniferous period, over 300 million years ago, the first tetrapods evolved features that allowed them to prosper on land as well as in water. For tens of millions of years, these early amphibians were the dominant terrestrial animals on earth, paving the way for the reptiles (and dinosaurs) that eventually followed.
The Dire Wolf vs. the Saber-Toothed Tiger!
The Dire Wolf (Canis dirus) and the Saber-Toothed Tiger (Smilodon fatalis) shared the same North American landscape during the late Pleistocene epoch.
How Did Dinosaurs Have Sex?
What we don't know about dinosaur mating can fill a library--after all, it's not as if the act of sex leaves fossil evidence. But we can make some educated guesses, based on the size of dinosaurs and their reptilian heritage.
Meet Sarcosuchus, the 10-Ton SuperCroc
Sarcosuchus, aka the SuperCroc, was the largest prehistoric crocodile that ever lived. Here are 10 facts you may or may not have known about this Cretaceous menace.
Does Oil Really Come From Dinosaurs?
Many people mistakenly believe that oil comes from long-decomposed dinosaurs--and at least one prominent oil company has contributed to this myth by adopting a dinosaur as its trademark. Here's the truth about what dinosaurs do, and don't, have to do with the world's supply of fossil fuels.
Before the Dinosaurs, These Reptiles Ruled the...
Dinosaurs weren’t the first four-legged reptiles to prosper on land. The Carboniferous and Permian periods witnessed a large variety of
These Dinosaurs Were Duck-Billed, But They...
Among the most plentiful dinosaurs of the Mesozoic Era, hadrosaurs were large, low-slung plant eaters with tough beaks on their snouts to dig out vegetation. Here’s a look at how paleontologists classify duck-billed dinosaurs, as well as a list of notable genera ranging from Acristavus to Zhuchengosaurus.
Could Dinosaurs Live for 300 Years?
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >The bleached skeleton
Whales Were Once the Size of Golden Retrievers...
It may be hard to believe, but the story of whale evolution begins with terrestrial, dog-sized mammals that roamed central Asia about 50 million years ago. Here's what we currently know about whale evolution, along with profiles of the most important whale species.
10 Prehistoric Battles That Could (and Probably...
Here are ten battles involving various dinosaurs, reptiles, sharks and prehistoric mammals, with our picks for the likely winners. Could Triceratops have beaten Tyrannosaurus Rex in one-on-one combat? How about Allosaurus vs. Stegosaurus, or Megalodon vs. Leviathan?
How Much Do You Really Know About Diplodocus?
Whether you pronounce it correctly (dip-LOW-doe-kuss) or incorrectly (dip-low-DOE-kuss), Diplodocus was one of the biggest dinosaurs of the Mesozoic Era. Here are 10 facts you may or may not have known about this gigantic sauropod.
How Much Do You Know About Argentinosaurus?
How much do you know about Argentinosaurus, the current record-holder for the world's largest dinosaur? Here are 10 fun facts about this Mesozoic behemoth.
Meet Troodon, the World's Smartest Dinosaur
Often touted as the smartest dinosaur, Troodon is one of the more interesting theropods in the dinosaur bestiary. Here are 10 facts you may or may not have known about this late Cretaceous predator.
T. Rex vs. Triceratops: Who Would Win?
Tyrannosaurus Rex and Triceratops were two of the most popular dinosaurs of the Late Cretaceous period, and they both occupied the same North American territory. Who would win in a battle between a full-grown Triceratops and an adult T. Rex?
Here's How Prehistoric Horses Lost Their Toes
The story of horse evolution began with fleet, deer-sized mammals that prowled the woodlands of North America 10 million years after the extinction of the dinosaurs. Here's a look at the evolution of horses, along with profiles of various prehistoric horse species.
The Age of Pelycosaurs and Mammal-Like Reptiles
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >The Permian period
What Do You Call a 100-Ton Dinosaur With Armor...
By the end of the Cretaceous period, the only sauropods left standing were the titanosaurs--mysterious, armored plant-eaters whose partial skeletons have been unearthed all over the world. Here's a look at how titanosaurs are classified, along with profiles of genera ranging from Aegyptosaurus to Uberabatitan.
Dinosaurs Weren't The Only Reptiles to Go Extinct
Everyone knows about the dinosaurs, but the fact is that some reptiles have gone extinct in historical, rather than deep, time. Here are 10 snakes, turtles and crocodiles that have recently disappeared off the face of the earth.
The 20 Biggest Prehistoric Mammals
The dogs, cats, pigs and even hedgehogs of the Cenozoic Era vastly outweighed their modern descendants. Here's a slideshow of the 20 biggest prehistoric mammals, classified by type.
Dinosaurs Evolved, Just Like Other Animals....
Like all living creatures, dinosaurs evolved from preexisting ancestors. Here's an overview of current thinking about dinosaur evolution.
These 10 Birds Are as Dead as the Dodo
The last 1,000 years have witnessed the extinction of various birds--and some species disappeared off the face of the earth as little as 100 years ago. Here's a list of the 10 most notable birds that have gone extinct in historical times.
How Much Do You Really Know About the Cave Bear?
The Cave Bear was one of the most common megafauna mammals of Pleistocene Europe, as our human ancestors were well aware. Here are 10 facts you may or may not have known about this imposing beast.
These Marine Reptiles Made the Great White...
Until the K/T Extinction, 65 million years ago, the deadliest creatures in the sea weren't sharks, but marine reptiles like pliosaurs, plesiosaurs and mosasaurs. Here's our list of the 10 deadliest marine reptiles of the Mesozoic Era.
The 10 Cutest Dinosaurs
Some dinosaurs were cuter than others. Here's a list of the 10 most adorable dinosaurs of the Mesozoic era.
How Much Do You Know About Archaeopteryx?
Archaeopteryx is the single most famous transitional form in the fossil record, but this bird-like dinosaur
How Much Do You Know About Ankylosaurus?
One of the most heavily armored dinosaurs that ever lived, Ankylosaurus was also one of the last dinosaurs standing in the wake of the K/T meteor impact. Here are 10 fascinating facts about Ankylosaurus.
10 Recently Extinct Fish
Fish, just like other animals, can be driven to extinction by predation, pollution and changes to their habitats. Here are 10 fish that have gone extinct in historical times, ranging from the Galapagos Damsel to the Harelip Sucker.
Here's Why the Dodo Is, Well, as Dead as a Dodo
The Dodo Bird disappeared so quickly from the island of Mauritius, in the 17th century, that it has become the poster animal for sudden extinction. But how much do you really know about this squat, flightless pigeon relative?
These 300-Million-Year-Old Lizards Went on to...
After the rise of the amphibians, but before the advent of pelycosaurs, archosaurs and therapsids, there were the ancestral reptiles--small, skittering, lizard-like creatures that lay at the root of reptilian evolution. Here's what we know about these trailblazing animals, along with a list of the most notable genera.
Spinosaurus vs. Sarcosuchus!
Spinosaurus was the largest carnivorous dinosaur that ever lived. Sarcosuchus was the largest crocodile that ever lived. Both of these reptiles lived in middle Jurassic Africa. Who wins in a battle to the death between Spinosaurus and Sarcosuchus?
The Ones that Got Away - The Ancestral Fish of...
The first vertebrates on the planet, prehistoric fish lay at the root of hundreds of millions of years of evolution. Here's everything you need to know about the evolution (and extinction) of ancestral fish.
10 Facts About Quetzalcoatlus, the Feathered...
The largest pterosaur that ever lived, Quetzalcoatlus is still a mystery: no one knows how it flew, what it ate, or even how much it weighed. Here are 10 facts you may or may not have known about this giant pterosaur.
These Animals Came in Much Bigger Packages 10...
It seems that every animal on earth grew to giant sizes two, 20, or even 40 million years ago--witness the Giant Wombat, the Giant Beaver and the Giant Sloth, to name just three. Here's everything you need to know about the giant megafauna, mammalian and otherwise, that prospered after the age of the dinosaurs.
These Dinosaurs Were the Jurassic Equivalent of...
Ankylosaurs were among the last dinosaurs standing 65 million years ago, and with good reason: these otherwise gentle plant-eaters were the Cretaceous equivalent of Sherman tanks, complete with armor plating, sharp spikes and heavy clubs. Here's a look at how paleontologists classify ankylosaurs, as well as profiles of genera ranging from Acanthopholis to Tianchisaurus.
How Much Do You Know About Apatosaurus?
Apatosaurus is famous for once having been named Brontosaurus--and Brontosaurus is famous because it was one of the first sauropods ever to be identified. Here are 10 fascinating facts about this late Jurassic dinosaur.
10 Facts About Leviathan, the Giant Prehistoric...
The biggest prehistoric whale that ever lived, Leviathan was in the same weight class as the giant shark Megalodon. Here are 10 fascinating facts about this undersea behemoth.
How Much Do You Know About Parasaurolophus?
One of the world's most recognizable dinosaurs, the long-crested Parasaurolophus is still a bit of a mystery. Here are 10 facts you may or may not have known about this famous duckbill.
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