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Dinosaurs: Most Popular Articles

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10 Facts About Megalodon, the World's Deadliest...
Megalodon was the biggest prehistoric shark that ever lived. Here are 10 facts you may or may not have known about this enormous predator.
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.
A Guide to the 15 Major Types of Dinosaurs
How many types of dinosaurs were there? Here's a list of the 15 most important dinosaur types, ranging from ankylosaurs to tyrannosaurs, complete with links to additional information.
These Dinosaurs Were Bigger Than the House You...
How heavy was Argentinosaurus? What was the wingspan of Quetzalcoatlus? Read this list of the 10 biggest dinosaurs (as well as non-dinosaur reptiles like pterosaurs, pliosaurs and therapsids) to find out.
10 Facts About the Most Dangerous Big Cat that...
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 beast.
What Were the 10 Deadliest Dinosaurs?
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, pterosaurs, and marine reptiles. If you see one of these guys on the street--run!
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.
20 Important 'Firsts' in the Animal Kingdom
As a rule, biologists and evolutionary scientists don't like the word "first"--evolution proceeds by
Here's What Jurassic Park's Velociraptors Were...
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.
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!
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.
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.
10 Prehistoric Battles That Could (and Probably...
Could Triceratops have beaten Tyrannosaurus Rex in one-on-one combat? How about Allosaurus vs. Stegosaurus, or Megalodon vs. Leviathan? Here are ten battles involving various dinosaurs, reptiles, sharks and prehistoric mammals, with our picks for the likely winners.
Here's Why Crocodiles Haven't Changed Much in...
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Of all the reptiles
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?
Here's Everything You Need to Know About T. Rex
Everything you need to know about T. Rex. By far the most popular of all dinosaurs, spawning a huge number of books, movies, TV shows and video games.
Wild and Woolly Facts About the Wild and Woolly...
It wasn't the biggest Mammuthus species, but the Woolly Mammoth is still the most famous prehistoric elephant of the Pleistocene epoch. Here are 10 facts you may or may not have known about this huge, shaggy pachyderm.
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.
The 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.
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?
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.
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.
Don't Like Snakes? Then Don't Read These Facts...
Titanoboa was the biggest prehistoric snake that ever lived, measuring almost 50 feet from head to tail and weighing over a ton. Here are ten facts you may (or may not) have known about Titanoboa.
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.
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 creature for sudden extinction. But what do we really know about this squat, flightless pigeon relative?
Why There's No Such Thing as a Pterodactyl, and...
Everything You Need to Know About Pterodactylus and Pteranodon
Iguanacolossus! Raptorex! These Are Some...
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 Achillobator to Vulcanodon.
Witness the Slow Parade of Pachyderm Evolution
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.
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.
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.
Deinonychus Facts
One of the most fearsome dinosaurs of the Cretaceous period.
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.
Giganotosaurus Facts
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Name: Giganotosaurus
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
The 10 Freakiest Dinosaurs that Ever Lived
Not all dinosaurs (or archosaurs, or pterosaurs) sported the same plain-vanilla body plans. Some of these creatures 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 a list of the 10 weirdest reptiles ever to walk (or crawl, or fly) the earth 100 million years ago.
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.
Tyrannosaurs - They're More Than Just T. Rex
Tyrannosaurs were the killing machines of the Cretaceous period: these huge, powerful dinosaurs were all legs, trunk and teeth, and they preyed relentlessly on smaller, herbivorous prey. Here’s a look at how paleontologists classify tyrannosaurs, as well as profiles of the most notable genera, ranging from Tyrannosaurus Rex to Guanlong.
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 Birds that Have Gone Extinct in Modern Times
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.
Utah's Most Famous Dinosaur, Exposed!
One of the biggest raptors ever to walk the earth, Utahraptor terrorized North America during the early Cretaceous period. Here are 10 facts you may or may not have known about Utahraptor.
10 Facts About the Dire Wolf, Your Favorite...
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.
These Dinosaurs Could Fit in a Prehistoric...
Not all dinosaurs were as big as houses--some were as small as wiener dogs, or even smaller. Here's a list of the 10 smallest dinosaurs, plus a few bite-sized pterosaurs, marine reptiles and mammals).
Here Are 10 Facts You May Not Have Known About...
It's impossible to mistake Triceratops for any other dinosaur--but very possible to hold some mistaken notions about this ancient ceratopsian. Here are 10 things you may (or may not) have known about Triceratops.
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.
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.
Megalodon - Is There Really Any 'New Evidence?'
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Does Megalodon:
Here's Why the Tasmanian Tiger Wasn't Really a...
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 predator.
Spinosaurus Facts
This huge dinosaur had an equally impressive sail on its back.
Here's 10 Facts You May Not Have Known About...
Iguanodon was one of the first dinosaurs ever to be discovered; because of that, paradoxically, it's also one of the least understood. Here are 10 facts you may or may not have known about this plus-sized plant eater.
Lystrosaurus Facts
This unusually widespread therapsid preceded the dinosaurs.
Leviathan Facts
A giant killer sperm whale of the Miocene epoch.
Spinosaurus - Bigger than T. Rex, and More...
Spinosaurus is the largest carnivorous dinosaur yet identified, bigger (and possibly nastier) than either T. Rex or Giganotosaurus. Here are 10 facts you may or may not have known about Spinosaurus.
10 Myths About the Extinction of Dinosaurs
Scientists have a pretty good idea why the dinosaurs went extinct 65 million years ago--but that hasn't prevented some popular myths from spreading about how, when, and even whether the dinosaurs went down for the count. Here are the top 10 misconceptions about dinosaur extinction.
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?
These Plant-Eating Dinosaurs Were Bigger Than...
The sauropods were the true giants of the dinosaur family, some genera attaining lengths of over 100 feet and weights of over 100 tons. Here's a brief overview of sauropod evolution and behavior, as well as an alphabetical list of genera ranging from Apatosaurus to Vulcanodon.
Meet Triceratops and Friends - The "Horn-Faced"...
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Among the most
Velociraptor Facts
This dinosaur was vicious--but a lot smaller than you thought.
Argentinosaurus Facts
Possibly the largest plant-eating dinosaur that ever lived.
Could Dinosaurs Live for 300 Years?
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >The bleached skeleton
These 10 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.
Tyrannosaurus Rex Facts
A profile of Tyrannosaurus Rex, the once--and always--king of the dinosaurs.
Dinosaurs Aren't the Only Reptiles to Have Gone...
A list of 10 snakes, turtles, lizards and crocodiles that have gone extinct in historical times.
Everything Jurassic Park Told You About...
Thanks to its brief (but inaccurate) cameo in Jurassic Park, Dilophosaurus has become one of the world's most popular dinosaurs. Here are 10 facts you may or may not have known about Dilophosaurus.
Giganotosaurus - Bigger than T. Rex, but...
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 hunter of the middle Cretaceous period.
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.
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.
Utahraptor Facts
It was probably the biggest raptor that ever lived.
The Most Important Dinosaurs, Continent by...
Dinosaurs inhabited all seven continents during the Triassic, Jurassic and Cretaceous periods. Here are lists of the 10 most important dinosaurs of North and South America, Europe, Asia, Africa, Australia and Antarctica.
Deinonychus - The Real Star of Jurassic Park
Velociraptor gets all the press, but it was another raptor dinosaur, Deinonychus, that really stole the show in Jurassic Park. Here are 10 facts you may or may not have known about Deinonychus.
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.
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.
Megalodon Pictures
Pictures, illustrations and photographs of Megalodon, the biggest prehistoric shark that ever lived.
When Plus-Sized Prehistoric Mammals Ruled the...
During the Mesozoic Era, mammals were tiny, quivering creatures that lived high up in trees--but after the dinosaurs went extinct, these same mammals were free to evolve to giant sizes. Here are the 10 most important giant mammals that succeeded the dinosaurs.
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.
Megalodon - The Monster Shark DOESN'T Live
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >What can you say
10 Fish that Have Disappeared from the Earth's...
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.
Meet the SuperCroc, 40 Feet Long and Absolutely...
Better known as the SuperCroc, this large crocodile makes modern crocs and gators look like tiny geckos by comparison.
10 Game Animals that Have Gone Extinct in...
Hunting has been a human pastime since the dawn of civilization--and, not surprisingly, the spread of civilization has been accompanied by the extinction of various game animals. Here are 10 deer, elephants, bears and hippos that have gone extinct in historical times.
10 Frogs, Toads and Salamanders That Have Gone...
A list of 10 amphibians--including frogs, toads, salamanders and caecilians--that have gone extinct in modern times.
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.
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?
Dinosaurs and Prehistoric Animals by State
Lists of the most notable dinosaurs and prehistoric animals found in each of the 50 United States.
Liopleurodon Facts
This mean-looking pliosaur ruled the Jurassic seas.
It's a Bird! It's a Dinosaur! Here's What You...
Often considered to be the first true bird, Archaeopteryx was actually something far more complex: a tiny dinosaur with distinctly bird-like characteristics. Here are 10 facts you may or may not have known about Archaeopteryx.
Why Mastodons Weren't Mammoths, and Other Fun...
Mastodons coexisted with Mammoths for almost a million years, until both of these prehistoric elephants went extinct during the last Ice Age. Here are 10 facts you may or may not have known about Mastodons.
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.
Kronosaurus Facts
It made a great white shark seem like a guppy by comparison.
Do You Believe in the Loch Ness Monster? Then...
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >There's a lot
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.
How Jurassic Park Lied to Us About Dinosaur...
Ever since Jurassic Park, people have wondered if it will one day be possible to clone a living, breathing dinosaur. Trouble is, the scientific challenges are much heftier than you've been led to believe.
Creationists Think Dinosaurs Existed Alongside...
Creationist don't believe in evolution, and they insist that the earth is only a few thousand years old. How do dinosaurs fit in their world view?
Here's Everything You Need to Know About the 10...
There were literally hundreds of dinosaurs, but only a handful merit memorization by eager dinosaur lovers, young or old. Here's all the information you need about the 10 most famous dinosaurs that ever lived, ranging from Allosaurus to Tyrannosaurus Rex.
Allosaurus vs. Stegosaurus!
Allosaurus and Stegosaurus both lived in late Jurassic North America, about 150 million years ago--and it's a sure bet that these two dinosaurs had a predator-prey relationship. The question is, could an adult Allosaurus hope to take down a full-grown Stegosaurus in a fair fight?
Allosaurus Facts
One of the most common predatory dinosaurs of the Jurassic period.
These Long-Toothed Cats Sure Didn't Use the...
They weren't technically tigers, but saber-toothed cats were every bit as dangerous to the grazing mammals (and early hominids) of their day. Here's a look at saber-tooth evolution and lifestyles, along with profiles of various species.
10 Horse Breeds That No One Will Ever Get the...
Although the genus Equus is still going strong, various species (and sub-species) of horses, donkeys and zebras have disappeared during historical times. Here's a list of 10 recently extinct equines.
Knucklehead? Irritator? Who Named These...
After long, weary months collecting bones out in the field, cleaning them in the lab with tiny toothpicks, and laboriously piecing them together for display or further study, paleontologists can be forgiven for occasionally bestowing strange names on the objects of their research. Here are the 10 dinosaurs with the weirdest, funniest, and (in one or two cases) most inappropriate names.
Here Are 10 Books Every Dinosaur Fan Should Read
Not all books about dinosaurs are created equal. Here's a list of the 10 most informative, and well-written, books about dinosaurs and prehistoric life.
Cave Lion Facts
This Pleistocene predator was one of the world's largest lions.
Allosaurus - The Most Dangerous Dinosaur of the...
Allosaurus was one of the most common, and dangerous, carnivorous dinosaurs of the late Jurassic period. Here are 10 facts you may or may not have known about this agile predator.
Was the Average Dinosaur Dumber than a Newborn...
Did all dinosaurs have a brain the size of a walnut, or might some of them have been as smart as very small mammals? Here's a look at modern views of dinosaur intelligence.
Sarcosuchus Facts
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Name: Sarcosuchus
10 Spiders, Moths, Snails and Mussels That Have...
The world may be teeming with insects and invertebrates, but that doesn't mean individual species can't go extinct. Here's a list of 10 moths, butterflies, worms and snails that have gone extinct in historical times.
These Marine Reptiles Made Great White Sharks...
The marine reptiles known as mosasaurs were sleek, vicious, and fast, which made them the terrors of the late Cretaceous seas. Here's everything you need to know about these dangerous aquatic predators.
10 Things Megalodon Could Swallow Whole
In the spirit of the Discovery Channel, here's a (completely fictitious) list of all the things the giant shark Megalodon could swallow whole.
Carbonemys vs. Titanoboa!
Carbonemys was a one-ton, meat-eating turtle of Paleocene South America. Titanoboa was a 50--foot-long, one-ton snake that lived at the same time and place. Who wins a battle between Carbonemys and Titanoboa?
When Dinosaurs Were Indistinguishable from...
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Part of the reason
Troodon Facts
It may have been the smartest dinosaur that ever lived.
How Scientists Are Playing Frankenstein with...
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >There's a new
Brachiosaurus Facts
A giant, gentle, long-necked dinosaur.
We Posed These Prehistoric Animals Next to...
It's one thing to know that a dinosaur was 40 feet long and weighed seven tons, and another to grasp just how enormous that was compared to the average full-grown human. This photo gallery will show you just how enormous some prehistoric animals were!
Abelisaurus Facts
class="no-js" itemscope itemtype="http://schema.org/Article" >Tyrannosaurus Rex , with fairly short arms
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.
Was T. Rex a Hunter or Scavenger?
Did Tyrannosaurus Rex actually hunt for its food, or did it scavenge already dead (or dying) prey?
Triceratops Facts
The famous three-horned, big-frilled, plant-eating dinosaur.
Dire Wolf Facts
A giant wolf of the Pleistocene epoch.
Troodon - The Only Dinosaur That Could...
Often touted as the smartest dinosaur that ever lived, Troodon was a typical theropod of the late Cretaceous period. Here are 10 facts you may or may not have known about Troodon.
Untangling the Roots of the Dinosaur Family Tree
Some time in the middle to late Triassic period, about 230 million years ago, the first dinosaurs evolved from their archosaur ancestors. Here's everything you need to know about these early templates for dinosaur evolution.
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.
These 10 Paleontologists Changed How We See...
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 10 dinosaur hunters who have contributed more to our knowledge of these ancient reptiles than anyone else in the field.
The Cave Bear vs. the Cave Lion!
The Cave Bear, Ursus spelaeus, was one of the most common megafauna mammals of Pleistocene Europe. The Cave Lion, Panthera leo spelaea, was a huge cat that shared the Cave Bear's territory. Which of these animals would have come out on top in a pack-on-pack rumble?
The Asteroid Impact that Doomed the Dinosaurs
What caused the sudden extinction of the dinosaurs 65 million years ago? Most scientists blame an astronomical impact.
Were Dinosaurs Really Warm-Blooded?
Although many people think the issue has been settled once and for all, scientists still debate whether dinosaurs were warm-blooded or cold-blooded (or something in between). Here's a look at the evidence for and against warm-blooded dinos.
Giganotosaurus vs. Argentinosaurus!
Argentinosaurus was one of the largest sauropods that ever lived, adults weighing in the neighborhood of 100 tons. Giganotosaurus was a T. Rex-sized predator that may have hunted in packs. Who comes out on top in an encounter between these two huge dinosaurs?
Albertosaurus Facts
This tyrannosaur was a close cousin of T. Rex.
Megalodon Facts
The biggest (and scariest) shark that ever lived.
These Dinosaurs Weren't Tyrannosaurs, but They...
We know all about tyrannosaurs and raptors, but those two families comprised only a small percentage of the bipedal, carnivorous dinosaurs known as theropods. Here's a look at the larger theropods of the Mesozoic Era, including allosaurs and abelisaurs, as well as profiles of representative theropod genera.
Woolly Mammoth Facts
This shaggy prehistoric elephant was on the lunch menu of early humans.
100 Million Years of Pterosaur Evolution
Pterosaurs were the first creatures (other than insects) to take to the skies. Here's a look at the evolution and behavior of pterosaurs, along with profiles of the most notable pterosaur genera.
Basilosaurus Facts
One of the biggest prehistoric whales that ever lived.
These Real-Life Loch Ness Monsters Lived 100...
During the Jurassic and Cretaceous periods, the earth's oceans, lakes and rivers were filled by large, agile reptiles, the plesiosaurs and pliosaurs, that looked uncannily like sea serpents. Here's an overview of the evolution, behavior and characteristics of these fearsome creatures, along with a list of genera ranging from Aristonectes to Woolungasaurus.
Achillobator Facts
This fierce raptor was discovered in modern-day Mongolia.
Ornithopods - The Plant-Eating, Two-Legged...
Ornithopods--small- to medium-sized, mostly bipedal plant-eaters--were among the most common dinosaurs of the Mesozoic Era, roaming the plains and woodlands in vast herds. Here's what we currently know about these plant-eaters, along with a list of notable genera.
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?
You Thought Grizzlies Were Scary? You've Never...
The fossils of the Cave Bear, Ursus spelaeus, have been discovered in Europe by the tens of thousands. Here are 10 facts you may or may not have known about this Pleistocene ursine.
The 10 Cutest Dinosaurs
Chaoyangsaurus, one of the cutest dinosaurs of the Mesozoic Era
Smilodon Facts
Yes, its teeth were like sabers, but it wasn't technically a tiger.
The Golden Age of Giant Armadillos
The most recent geological epoch in earth's history, the Pleistocene witnessed the flourishing - and extinction - of a wide variety of megafauna mammals.
Here's the Poop on Dinosaur Poop
Fossilized dinosaur dung, preserved in the form of coprolites, can be a useful tool for paleontologists. Here's the poop about dinosaur poop.
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.
Quetzalcoatlus Facts
The largest pterosaur--and the largest flying animal--that ever lived.
Carnotaurus Facts
The shortest arms of any meat-eating dinosaur--and horns to match.
These Dinosaurs Looked Like Ostriches - But...
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >As dinosaur names
Megalodon
A picture of the prehistoric shark Megalodon. Page 2.
These Plant-Eating Dinosaurs Were True...
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Pachycephalosaurs
The Dinosaurs of North America
Some of the world's most famous dinosaurs have been discovered in North America. Here's a list of the 10 most important North American dinosaurs, ranging from Allosaurus to Tyrannosaurus Rex.
Meet the Pterosaur that Was the Size of a Small...
Quetzalcoatlus was the biggest pterosaur that ever lived; in fact, this airplane-sized reptile was the biggest flying animal in earth's history. Here are 10 facts you may or may not have known about Quetzalcoatlus.
These 10 Extinct Mammals Could Eat You Whole
Andrewsarchus, a deadly prehistoric mammal
Ankylosaurus Facts
The Cretaceous equivalent of a Sherman tank.
Apatosaurus Facts
The dinosaur formerly known as Brontosaurus.
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