Dinosaurs: Most Popular Articles
These articles are the most popular over the last month.
10 Biggest Dinosaurs
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.
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.
Megalodon Facts
Megalodon was the biggest prehistoric shark that ever lived. Here are 10 facts you may or may not have known about this enormous predator.
Megalodon was the biggest prehistoric shark that ever lived. Here are 10 facts you may or may not have known about this enormous predator.
The 15 Main Dinosaur Types
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.
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.
Dinosaurs A to Z
A complete, alphabetical list of every dinosaur that ever lived during the Triassic, Jurassic and Cretaceous periods.
A complete, alphabetical list of every dinosaur that ever lived during the Triassic, Jurassic and Cretaceous periods.
Saber-Tooth Tiger Facts
Although it wasn't technically a tiger, the so-called Saber Tooth Tiger 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.
Although it wasn't technically a tiger, the so-called Saber Tooth Tiger 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.
The Three Ages of Dinosaurs
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 geologic time, and the prehistoric plants and animals that set them apart.
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 geologic time, and the prehistoric plants and animals that set them apart.
Tyrannosaurus Rex Facts
Did you know that the average Tyrannosaurus Rex lived to be about 30 years old? Or that T. Rex babies may have been covered in feathers? Here are 10 essential facts about the king of the dinosaurs.
Did you know that the average Tyrannosaurus Rex lived to be about 30 years old? Or that T. Rex babies may have been covered in feathers? Here are 10 essential facts about the king of the dinosaurs.
Pterodactyl Facts
Pterodactyl (by which most people mean either Pterodactylus or Pteranodon) is the most familiar pterosaur,
Pterodactyl (by which most people mean either Pterodactylus or Pteranodon) is the most familiar pterosaur,
The 10 Best Dinosaur Names
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.
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.
10 Deadly 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!
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!
The 10 Deadliest Prehistoric Mammals
Today, there are very few mammals alive on earth that can kill you with one well-aimed bite or swipe of a paw--but that wasn't the case millions of years ago, when the earth was ruled by giant cats, hyenas, and rhinoceroses. Here's our list of the 10 deadliest prehistoric mammals.
Today, there are very few mammals alive on earth that can kill you with one well-aimed bite or swipe of a paw--but that wasn't the case millions of years ago, when the earth was ruled by giant cats, hyenas, and rhinoceroses. Here's our list of the 10 deadliest prehistoric mammals.
Velociraptor Facts
Next to T. Rex, Velociraptor is the most famous carnivorous dinosaur that ever lived. Here are 10 facts about this meat-eater that you may (or may not) have gleaned from repeated viewings of Jurassic Park.
Next to T. Rex, Velociraptor is the most famous carnivorous dinosaur that ever lived. Here are 10 facts about this meat-eater that you may (or may not) have gleaned from repeated viewings of Jurassic Park.
10 Dinosaur Facts
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.
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.
Woolly Mammoth Facts
It wasn't the biggest or fiercest of its breed, but the Woolly Mammoth remains the most famous prehistoric elephant of the Pleistocene epoch. Here are 10 facts you may (or may not) have known about this large, shaggy pachyderm.
It wasn't the biggest or fiercest of its breed, but the Woolly Mammoth remains the most famous prehistoric elephant of the Pleistocene epoch. Here are 10 facts you may (or may not) have known about this large, shaggy pachyderm.
Prehistoric Crocodiles
Of all the reptiles alive today, crocodiles and alligators may be the least changed from their prehistoric
Of all the reptiles alive today, crocodiles and alligators may be the least changed from their prehistoric
Dinosaur Jokes
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 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!
Shark Evolution
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.
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.
Dinosaur Mating
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.
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.
Triceratops Facts
It's impossible to mistake Triceratops for any other dinosaur--but very possible to hold some mistaken notions about this ancient beast. Here are 10 things you may (or may not) have known about Triceratops.
It's impossible to mistake Triceratops for any other dinosaur--but very possible to hold some mistaken notions about this ancient beast. Here are 10 things you may (or may not) have known about Triceratops.
Raptors
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 Velociraptor to Utahraptor.
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 Velociraptor to Utahraptor.
Dog Evolution
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.
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.
The First Mammals
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.
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.
Tyrannosaurus Rex
A profile of Tyrannosaurus Rex, the once--and always--king of the dinosaurs.
A profile of Tyrannosaurus Rex, the once--and always--king of the dinosaurs.
Whale Evolution
It may be hard to believe, but the story of whale evolution began with terrestrial, dog-sized mammals that roamed central Asia about 50 million years ago. Here's what we know about whale evolution, along with profiles of a various prehistoric whales.
It may be hard to believe, but the story of whale evolution began with terrestrial, dog-sized mammals that roamed central Asia about 50 million years ago. Here's what we know about whale evolution, along with profiles of a various prehistoric whales.
Spinosaurus
This huge carnivorous dinosaur had an equally impressive sail on its back.
This huge carnivorous dinosaur had an equally impressive sail on its back.
Elephant 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 prehistoric elephants, along with profiles of genera ranging from Amebelodon to Stegomastodon.
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 prehistoric elephants, along with profiles of genera ranging from Amebelodon to Stegomastodon.
Stegosaurus Facts
Stegosaurus is one of the most familiar dinosaurs of the Cretaceous period, but how much do you really know about this plated reptile? Here are 10 facts you may or may not have known about Stegosaurus.
Stegosaurus is one of the most familiar dinosaurs of the Cretaceous period, but how much do you really know about this plated reptile? Here are 10 facts you may or may not have known about Stegosaurus.
Dinosaur Extinction Myths
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.
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.
Spinosaurus Facts
Spinosaurus is the largest carnivorous dinosaur ever to be discovered, bigger even than T. Rex and Giganotosaurus. Here are 10 facts you may (or may not) have known about this enormous predator.
Spinosaurus is the largest carnivorous dinosaur ever to be discovered, bigger even than T. Rex and Giganotosaurus. Here are 10 facts you may (or may not) have known about this enormous predator.
The First Dinosaurs
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 theropods.
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 theropods.
Extinct Lions and Tigers
Few creatures on earth are as threatened by extinction today as the big cats--lions, tigers and cheetahs.
Few creatures on earth are as threatened by extinction today as the big cats--lions, tigers and cheetahs.
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?
As relentless a killing machine as T. Rex was, this dinosaur was still equipped with tiny, almost vestigial arms and hands. Why?
Amphibian Evolution
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.
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 10 Smallest Dinosaurs
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).
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).
Velociraptor
This dinosaur was vicious--but a lot smaller than you thought.
This dinosaur was vicious--but a lot smaller than you thought.
The Dinosaur Encyclopedia
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.
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.
Deinonychus
One of the most fearsome dinosaurs of the Cretaceous period.
One of the most fearsome dinosaurs of the Cretaceous period.
10 Weirdest Dinosaurs
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.
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.
The 10 Smartest Dinosaurs
Pound for pound, dinosaurs were some of the dumbest creatures ever to roam the planet. However, not all raptors, tyrannosaurs, stegosaurs and hadrosaurs were equally stupid; some may even (just barely) have attained a mammalian level of intelligence. Here's a list of the 10 smartest dinosaurs, based on an analysis of their anatomy and behavioral patterns.
Pound for pound, dinosaurs were some of the dumbest creatures ever to roam the planet. However, not all raptors, tyrannosaurs, stegosaurs and hadrosaurs were equally stupid; some may even (just barely) have attained a mammalian level of intelligence. Here's a list of the 10 smartest dinosaurs, based on an analysis of their anatomy and behavioral patterns.
Utahraptor
It was probably the biggest raptor that ever lived.
It was probably the biggest raptor that ever lived.
Brachiosaurus Facts
One of the largest creatures ever to roam the earth, Brachiosaurus has become the poster lizard for huge, slow-witted sauropods. Here are 10 facts you may or may not have known about Brachiosaurus.
One of the largest creatures ever to roam the earth, Brachiosaurus has become the poster lizard for huge, slow-witted sauropods. Here are 10 facts you may or may not have known about Brachiosaurus.
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.
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.
Horse Evolution
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 species.
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 species.
Pelycosaurs, Archosaurs and Therapsids
Like archeologists discovering the ruins of a previously unknown civilization buried deep beneath an
Like archeologists discovering the ruins of a previously unknown civilization buried deep beneath an
Argentinosaurus
Possibly the largest plant-eating dinosaur that ever lived.
Possibly the largest plant-eating dinosaur that ever lived.
Leviathan (Livyatan)
A giant killer sperm whale of the Miocene epoch.
A giant killer sperm whale of the Miocene epoch.
Sauropods
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.
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.
Tyrannosaurs
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.
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.
Why Dinosaurs Were Big
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.
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.
10 Giant Mammals
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.
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.
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?
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?
Liopleurodon
This mean-looking pliosaur was one of the biggest marine reptiles.
This mean-looking pliosaur was one of the biggest marine reptiles.
Tyrannosaurus Rex Pictures
Pictures, illustrations and photographs of Tyrannosaurus Rex, the world's most popular dinosaur.
Pictures, illustrations and photographs of Tyrannosaurus Rex, the world's most popular dinosaur.
North American Dinosaurs
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.
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.
Allosaurus
One of the most common predatory dinosaurs of the Jurassic period.
One of the most common predatory dinosaurs of the Jurassic period.
Prehistoric Snakes
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 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.
Hadrosaurs
Among the last--and most common--dinosaurs to roam the earth, 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 these duck-billed dinosaurs, as well as a list of the most notable genera, ranging from Anatotitan to Telmatosaurus.
Among the last--and most common--dinosaurs to roam the earth, 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 these duck-billed dinosaurs, as well as a list of the most notable genera, ranging from Anatotitan to Telmatosaurus.
Where Did Dinosaurs Live?
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.
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.
Dinosaur Life Spans
The bleached skeleton of a hundred-million-year-old Deinonychus can tell us a lot about what it ate,
The bleached skeleton of a hundred-million-year-old Deinonychus can tell us a lot about what it ate,
Saber-Toothed Cats
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.
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.
Megalodon Pictures
Pictures, illustrations and photographs of Megalodon, the biggest prehistoric shark that ever lived.
Pictures, illustrations and photographs of Megalodon, the biggest prehistoric shark that ever lived.
Apatosaurus Facts
Apatosaurus is famous for once having been called Brontosaurus--and Brontosaurus is famous because it was one of the first sauropods ever to be discovered. Here are 10 facts you may or may not have known about Apatosaurus.
Apatosaurus is famous for once having been called Brontosaurus--and Brontosaurus is famous because it was one of the first sauropods ever to be discovered. Here are 10 facts you may or may not have known about Apatosaurus.
Sarcosuchus
Name: Sarcosuchus (Greek for "flesh crocodile"); pronounced sar-co-SOOK-us Habitat: Rivers of Africa
Name: Sarcosuchus (Greek for "flesh crocodile"); pronounced sar-co-SOOK-us Habitat: Rivers of Africa
Ankylosaurs
Ankylosaurs were among the last dinosaurs standing 65 million years ago, and with good reason: these otherwise gentle herbivores 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 Tarchia.
Ankylosaurs were among the last dinosaurs standing 65 million years ago, and with good reason: these otherwise gentle herbivores 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 Tarchia.
Ceratopsians
Among the most distinctive of all dinosaurs, ceratopsians (Greek for "horned faces") are also the most
Among the most distinctive of all dinosaurs, ceratopsians (Greek for "horned faces") are also the most
The First Tetrapods
400 million years ago, give or take a few million years, a brave fish climbed out of the water and onto dry land, armed with primitive lungs and four stumpy limbs. Here's what we know about the first tetrapods that blazed the trail for the earth's land-dwelling animals.
400 million years ago, give or take a few million years, a brave fish climbed out of the water and onto dry land, armed with primitive lungs and four stumpy limbs. Here's what we know about the first tetrapods that blazed the trail for the earth's land-dwelling animals.
Megalodon
The biggest (and scariest) shark that ever lived.
The biggest (and scariest) shark that ever lived.
Prehistoric Megafauna
It seems that every type of animal on earth grew to giant sizes two, 20, or even 40 million years ago--witness the Giant Wonbat, the Giant Beaver and the Giant Sloth, to name just three. Here's everything you need to know about the megafauna, mammalian and otherwise, that prospered after the age of dinosaurs.
It seems that every type of animal on earth grew to giant sizes two, 20, or even 40 million years ago--witness the Giant Wonbat, the Giant Beaver and the Giant Sloth, to name just three. Here's everything you need to know about the megafauna, mammalian and otherwise, that prospered after the age of dinosaurs.
Brachiosaurus
A giant, gentle, long-necked dinosaur.
A giant, gentle, long-necked dinosaur.
Dilophosaurus Facts
Thanks to its brief (but inaccurate) cameo in Jurassic Park, Dilophosaurus has become one of the world's most recognizable dinosaurs. Here are 10 facts you may or may not have known about Dilophosaurus.
Thanks to its brief (but inaccurate) cameo in Jurassic Park, Dilophosaurus has become one of the world's most recognizable dinosaurs. Here are 10 facts you may or may not have known about Dilophosaurus.
Plesiosaurs and Pliosaurs
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.
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.
Ankylosaurus Facts
Ankylosaurus was the prototypical armored dinosaur: low-slung, slow-moving, and covered with thick, knobby, impenetrable skin. Here are 10 facts you may or may not have known about Ankylosaurus.
Ankylosaurus was the prototypical armored dinosaur: low-slung, slow-moving, and covered with thick, knobby, impenetrable skin. Here are 10 facts you may or may not have known about Ankylosaurus.
Allosaurus Facts
Allosaurus was one of the most common carnivorous dinosaurs of the Jurassic period. Here are 10 facts you may or may not have known about this agile hunter.
Allosaurus was one of the most common carnivorous dinosaurs of the Jurassic period. Here are 10 facts you may or may not have known about this agile hunter.
T. Rex vs. Triceratops
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?
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?
Giganotosaurus
Name: Giganotosaurus (Greek for "giant southern lizard"); pronounced GEE-gah-NOTE-oh-SORE-us Habitat:
Name: Giganotosaurus (Greek for "giant southern lizard"); pronounced GEE-gah-NOTE-oh-SORE-us Habitat:
10 Facts About Titanoboa
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.
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.
Quetzalcoatlus
The largest pterosaur--and the largest flying animal--that ever lived.
The largest pterosaur--and the largest flying animal--that ever lived.
Fish Evolution
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 prehistoric fish.
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 prehistoric fish.
Vertebrate Evolution
The story of vertebrate evolution began over 500 million years ago, with the appearance of tiny, translucent proto-fish in the Cambrian seas, and culminated in the vast variety of birds, mammals and reptiles that inhabit the earth today. Here's an overview of the evolution of vertebrates, touching on creatures both still extant and long extinct.
The story of vertebrate evolution began over 500 million years ago, with the appearance of tiny, translucent proto-fish in the Cambrian seas, and culminated in the vast variety of birds, mammals and reptiles that inhabit the earth today. Here's an overview of the evolution of vertebrates, touching on creatures both still extant and long extinct.
Pterosaurs
Pterosaurs ("winged lizards") hold a special place in the history of life on earth: they were the first
Pterosaurs ("winged lizards") hold a special place in the history of life on earth: they were the first
Famous Fossil Discoveries
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.
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.
Titanosaurs
By the end of the Cretaceous period, the only sauropods left standing were the titanosaurs--mysterious, armored plant-eaters whose partial skeletons have been found all over the world. Here's a look at how these strange creatures are classified, along with profiles of genera ranging from Aegyptosaurus to Saltasaurus.
By the end of the Cretaceous period, the only sauropods left standing were the titanosaurs--mysterious, armored plant-eaters whose partial skeletons have been found all over the world. Here's a look at how these strange creatures are classified, along with profiles of genera ranging from Aegyptosaurus to Saltasaurus.
Smilodon (Saber-Toothed Tiger)
Yes, its teeth were like sabers, but it wasn't technically a tiger.
Yes, its teeth were like sabers, but it wasn't technically a tiger.
Deinonychus Facts
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 Deinonychus.
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 Deinonychus.
Canis Dirus vs. Smilodon
The Dire Wolf (Canis dirus) and the Saber-Toothed Tiger (Smilodon fatalis) shared the same North American landscape during the late Pleistocene epoch. Which of these predators would come out on top in a one-on-one battle?
The Dire Wolf (Canis dirus) and the Saber-Toothed Tiger (Smilodon fatalis) shared the same North American landscape during the late Pleistocene epoch. Which of these predators would come out on top in a one-on-one battle?
Does Oil 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.
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.
Kronosaurus
This pliosaur made a great white shark seem like a guppy by comparison.
This pliosaur made a great white shark seem like a guppy by comparison.
Diplodocus Facts
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 plant-eater.
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 plant-eater.
Did Dinosaurs Really Go Extinct?
Some people believe the world still harbors living, breathing dinosaurs. Here's a peek into their reasoning, and why they're probably wrong.
Some people believe the world still harbors living, breathing dinosaurs. Here's a peek into their reasoning, and why they're probably wrong.
Basilosaurus
The biggest prehistoric whale that ever lived.
The biggest prehistoric whale that ever lived.
Giant Prehistoric Creatures
Dinosaurs weren't the only animals to grow to huge sizes in prehistoric times. Here's a list of assorted amoebas, rats, parrots and beavers that were in a different weight class from their contemporaries.
Dinosaurs weren't the only animals to grow to huge sizes in prehistoric times. Here's a list of assorted amoebas, rats, parrots and beavers that were in a different weight class from their contemporaries.
Feathered Dinosaurs
Part of the reason so many ordinary people doubt the evolutionary link between feathered dinosaurs and
Part of the reason so many ordinary people doubt the evolutionary link between feathered dinosaurs and
Triceratops
The famous three-horned, big-frilled, plant-eating dinosaur.
The famous three-horned, big-frilled, plant-eating dinosaur.
Dire Wolf (Canis Dirus)
A giant wolf of the Pleistocene epoch.
A giant wolf of the Pleistocene epoch.
Giganotosaurus Facts
Giganotosaurus is rapidly gaining on T. Rex as the most popular carnivorous dinosaur. Here are 10 facts you may or may not have known about this terrifying hunter.
Giganotosaurus is rapidly gaining on T. Rex as the most popular carnivorous dinosaur. Here are 10 facts you may or may not have known about this terrifying hunter.
10 Biggest Dinosaur Mistakes
Paleontologists once believed that Stegosaurus had a brain its butt, that Brachiosaurus lived underwater, and that you could find Hypsilophodon nesting in trees. Here's a list of the 10 most notable mistakes in the history of paleontology.
Paleontologists once believed that Stegosaurus had a brain its butt, that Brachiosaurus lived underwater, and that you could find Hypsilophodon nesting in trees. Here's a list of the 10 most notable mistakes in the history of paleontology.
Troodon
This may have been the smartest dinosaur that ever lived.
This may have been the smartest dinosaur that ever lived.
Albertosaurus
This tyrannosaur was a close cousin of T. Rex.
This tyrannosaur was a close cousin of T. Rex.
The Permian Period
The Permian period was, literally, a time of beginnings and endings. It was during the Permian that the
The Permian period was, literally, a time of beginnings and endings. It was during the Permian that the
Raptor Pictures
Pictures, illustrations and photos of various raptors, ranging from Achillobator to Velociraptor.
Pictures, illustrations and photos of various raptors, ranging from Achillobator to Velociraptor.
Fictional Dinosaurs
Dinosaurs aren't only found in dried-up riverbeds and ancient quarries--fictional versions can also be seen in TV shows, movies, comic strips and video games. Here's a selection of pop culture's most notable dinosaurs, most of which wouldn't stand a fighting chance against their paleontologically correct forebears.
Dinosaurs aren't only found in dried-up riverbeds and ancient quarries--fictional versions can also be seen in TV shows, movies, comic strips and video games. Here's a selection of pop culture's most notable dinosaurs, most of which wouldn't stand a fighting chance against their paleontologically correct forebears.
Tyrannosaur Pictures
Pictures, illustrations and photos of various tyrannosaurs, ranging from Albertosaurus to T. Rex.
Pictures, illustrations and photos of various tyrannosaurs, ranging from Albertosaurus to T. Rex.
What Kind of Dinosaur Are You?
Are you a fierce tyrannosaur, or a towering sauropod? Would you rather be a small theropod or a horned, frilled plant-eater? Take this quiz to find out what type of dinosaur you are!
Are you a fierce tyrannosaur, or a towering sauropod? Would you rather be a small theropod or a horned, frilled plant-eater? Take this quiz to find out what type of dinosaur you are!
Mosasaurs
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.
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.
Were Dinosaurs 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.
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.
Dinosaurs and Creationists
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?
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?
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?
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?
Archaeopteryx Facts
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.
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.
What Did Dinosaurs Eat?
Some dinosaurs were meat-eaters, and some dinosaurs were plant-eaters--but all dinosaurs, large or small, had to eat constantly in order to survive. Here's a look at the favorite diets of dinosaurs during the Mesozoic Era.
Some dinosaurs were meat-eaters, and some dinosaurs were plant-eaters--but all dinosaurs, large or small, had to eat constantly in order to survive. Here's a look at the favorite diets of dinosaurs during the Mesozoic Era.
Troodon Facts
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.
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.
Megatherium (Giant Sloth)
This prehistoric sloth was bigger than an elephant.
This prehistoric sloth was bigger than an elephant.
Ankylosaurus
The Cretaceous equivalent of a Sherman tank.
The Cretaceous equivalent of a Sherman tank.
Andrewsarchus
The biggest terrestrial meat-eating mammal that ever lived.
The biggest terrestrial meat-eating mammal that ever lived.
Strange Dinosaur Names
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.
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.
Spinosaurus Pictures
Pictures, illustrations and photographs of the sail-backed carnivorous dinosaur Spinosaurus.
Pictures, illustrations and photographs of the sail-backed carnivorous dinosaur Spinosaurus.
How Smart Were Dinosaurs?
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.
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.
How Did Dinosaurs Evolve?
Like all living creatures, dinosaurs evolved from preexisting ancestors. Here's an overview of current thinking about dinosaur evolution.
Like all living creatures, dinosaurs evolved from preexisting ancestors. Here's an overview of current thinking about dinosaur evolution.
Apatosaurus
The dinosaur formerly known as Brontosaurus.
The dinosaur formerly known as Brontosaurus.
Achillobator
This fierce raptor was discovered in modern-day Mongolia.
This fierce raptor was discovered in modern-day Mongolia.
Bird Evolution
Bird evolution began with the small, feathered theropods of the Jurassic period; after the dinosaurs went extinct, birds spread to fill every available ecological niche--hunters, flyers, swimmers and more. Here's everything you need to know about the evolution (and extinction) of birds.
Bird evolution began with the small, feathered theropods of the Jurassic period; after the dinosaurs went extinct, birds spread to fill every available ecological niche--hunters, flyers, swimmers and more. Here's everything you need to know about the evolution (and extinction) of birds.
K/T Extinction
What caused the sudden extinction of the dinosaurs 65 million years ago? Most scientists blame an astronomical impact.
What caused the sudden extinction of the dinosaurs 65 million years ago? Most scientists blame an astronomical impact.
Large Theropods
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.
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.
Carnotaurus
The shortest arms of any meat-eating dinosaur--and horns to match.
The shortest arms of any meat-eating dinosaur--and horns to match.
Pictures of Velociraptor
Pictures, illustrations and photographs of Velociraptor.
Pictures, illustrations and photographs of Velociraptor.
The Silurian Period
The shortest period of the Paleozic Era, the Silurian marks the time when the first plants and animals colonized dry land. Here's a look at the prehistoric life that could be found on earth during the Silurian period.
The shortest period of the Paleozic Era, the Silurian marks the time when the first plants and animals colonized dry land. Here's a look at the prehistoric life that could be found on earth during the Silurian period.
The Paleozoic Era
The Paleozoic Era was when the first complex, multicellular organisms evolved, eventually leading to the archosaurs and therapsids that ushered in the age of dinosaurs. Here's an overview of the prehistoric life that could be found on earth during the Paleozoic Era.
The Paleozoic Era was when the first complex, multicellular organisms evolved, eventually leading to the archosaurs and therapsids that ushered in the age of dinosaurs. Here's an overview of the prehistoric life that could be found on earth during the Paleozoic Era.
The Pleistocene Epoch
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 a look at prehistoric life on earth during the Pleistocene epoch.
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 a look at prehistoric life on earth during the Pleistocene epoch.
Stegosaurs
Stegosaurus may be the most famous example, but at least a dozen other genera of stegosaur lived during the Jurassic and early Cretaceous periods. Here's everything you need to know about these plated, spiked, four-legged plant-eaters.
Stegosaurus may be the most famous example, but at least a dozen other genera of stegosaur lived during the Jurassic and early Cretaceous periods. Here's everything you need to know about these plated, spiked, four-legged plant-eaters.
The Ordovocian Period
Though it's not as well-known as the preceding Cambrian period, the Ordovician period was crucial for the continuing evolution of arthropods and vertebrates. Here's a look at the prehistoric life that could be found on earth during the Ordovician period.
Though it's not as well-known as the preceding Cambrian period, the Ordovician period was crucial for the continuing evolution of arthropods and vertebrates. Here's a look at the prehistoric life that could be found on earth during the Ordovician period.
How Was Tyrannosaurus Rex Discovered?
How do we know what we know about Tyrannosaurus Rex? Here's a timeline of pertinent fossil discoveries.
How do we know what we know about Tyrannosaurus Rex? Here's a timeline of pertinent fossil discoveries.
The Carboniferous Period
The Carboniferous period marks the time when reptiles and amphibians cemented their hold on dry land, while dense tropical swamps covered much of the planet (yielding most of today's coal reserves). Here's a look at the prehistoric life that could be found on earth during the Carboniferous period.
The Carboniferous period marks the time when reptiles and amphibians cemented their hold on dry land, while dense tropical swamps covered much of the planet (yielding most of today's coal reserves). Here's a look at the prehistoric life that could be found on earth during the Carboniferous period.
Diplodocus
This dinosaur was thin at one end, much thicker in the middle, and thin again at the far end.
This dinosaur was thin at one end, much thicker in the middle, and thin again at the far end.
The 10 Cutest Dinosaurs
Some dinosaurs were cuter than others. Here's a list of the 10 most adorable dinosaurs of the Mesozoic era.
Some dinosaurs were cuter than others. Here's a list of the 10 most adorable dinosaurs of the Mesozoic era.
Stegosaurus
Pictures, illustrations and photographs of the famous herbivorous dinosaur Stegosaurus.
Pictures, illustrations and photographs of the famous herbivorous dinosaur Stegosaurus.
The Cambrian Period
Before the Cambrian period, 600 or so million years ago, life on earth consisted mostly of single-celled
Before the Cambrian period, 600 or so million years ago, life on earth consisted mostly of single-celled
Acrocanthosaurus
The largest predator of the early Cretaceous period.
The largest predator of the early Cretaceous period.
Dimetrodon
It wasn't a dinosaur, despite what most people think.
It wasn't a dinosaur, despite what most people think.
Abelisaurus
Tyrannosaurus Rex , with fairly short arms and a bipedal gait. The one odd feature of Abelisaurus (at
Tyrannosaurus Rex , with fairly short arms and a bipedal gait. The one odd feature of Abelisaurus (at
Primate Evolution
The first primate ancestors appeared on earth around the time the dinosaurs went extinct--and diversified, over the next 65 million years, into monkeys, lemurs, great apes and (a relatively recent development) human beings. Here's everything you need to know about primate evolution, along with a list of important species.
The first primate ancestors appeared on earth around the time the dinosaurs went extinct--and diversified, over the next 65 million years, into monkeys, lemurs, great apes and (a relatively recent development) human beings. Here's everything you need to know about primate evolution, along with a list of important species.
Utahraptor Facts
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.
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.
Dinosaur Families
Until the recent discovery of ancient nesting grounds, paleontologists knew virtually nothing about how (or even if) dinosaurs cared for their young after they hatched. Here's a look at the current state of thought about dinosaur child rearing.
Until the recent discovery of ancient nesting grounds, paleontologists knew virtually nothing about how (or even if) dinosaurs cared for their young after they hatched. Here's a look at the current state of thought about dinosaur child rearing.
Iguanodon Facts
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.
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.
Dinosaur Habitats
Like modern mammals, dinosaurs occupied a wide range of habitats, ranging from deserts to tropical jungles to polar regions. Here's a list of the 10 most important habitats prowled by dinosaurs during the Mesozoic Era.
Like modern mammals, dinosaurs occupied a wide range of habitats, ranging from deserts to tropical jungles to polar regions. Here's a list of the 10 most important habitats prowled by dinosaurs during the Mesozoic Era.
Coprolites (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.
Fossilized dinosaur dung, preserved in the form of coprolites, can be a useful tool for paleontologists. Here's the poop about dinosaur poop.
Sauroposeidon
One of the tallest dinosaurs ever to walk the earth.
One of the tallest dinosaurs ever to walk the earth.
Dimetrodon Facts
It's often mistaken for a dinosaur, but Dimetrodon actually walked the earth millions of years before dinosaurs evolved. Here are 10 facts you may or may not have known about Dimetrodon.
It's often mistaken for a dinosaur, but Dimetrodon actually walked the earth millions of years before dinosaurs evolved. Here are 10 facts you may or may not have known about Dimetrodon.
Parasaurolophus Facts
With its long, distinctive, backward-curving crest, Parasaurolophus was one of the most recognizable dinosaurs of the Cretaceous period. Here are 10 facts you may or may not have known about Parasaurolophus.
With its long, distinctive, backward-curving crest, Parasaurolophus was one of the most recognizable dinosaurs of the Cretaceous period. Here are 10 facts you may or may not have known about Parasaurolophus.
The Devonian Period
The Devonian period is when the first, brave lobe-finned fish climbed out of the sea and onto dry land, kicking off millions of years of terrestrial vertebrate evolution. Here's a look at the prehistoric life that could be found on earth during the Devonian period.
The Devonian period is when the first, brave lobe-finned fish climbed out of the sea and onto dry land, kicking off millions of years of terrestrial vertebrate evolution. Here's a look at the prehistoric life that could be found on earth during the Devonian period.
The Cenozoic Era
The Cenozoic Era began right after the dinosaurs went extinct, 65 million years ago, and continues down to the present day. Here's an overview of the prehistoric life that inhabited the earth during the Cenozoic Era and its various periods and epochs.
The Cenozoic Era began right after the dinosaurs went extinct, 65 million years ago, and continues down to the present day. Here's an overview of the prehistoric life that inhabited the earth during the Cenozoic Era and its various periods and epochs.