Prehistoric Life

Within Science

Color illustration of a tree with several long spikes of golden resin extending down and running along a branch.

Illustration of two people kneeling next to a dinosaur skull that is larger than they are. Caption: A T. rex skull can weigh up to 750 pounds.

Computer rendering of an olive green and brown Tyrannosaurus rex standing on its hind legs and tilting slightly forward.

Person laying on the ground with tools and buckets spread around them. No Trespassing sign. Caption: The paleontologists in the field uncover an exciting find.

A large dinosaur wearing a hat and a necklace changes the lightbulb on a streetlamp while a police officer stands next to her holding the light cover. Caption: She was the dinosaur who did favors for anyone who asked.

A sketch of a dinosaur, and a man is seen standing below. Caption: Argentinosaurus, 35 meters approximately equals 114 feet. 70 metric tons approximately equals 154,000 pounds.

A cartoon shows a large python wrapping its body and squeezing a small crocodile.

Still image from: Eons: How Ancient Art Captured Australian Megafauna

Still image from: Eons: How Ankylosaurs Got Their Clubs

Still image from: Eons: How Earth's First, Unkillable Animals Saved the World

Still image from: Eons: How Plankton Created a Bizarre Giant of the Seas

Slow moving current passes by a grouping of rocks partially covered with moss.

An illustration depicts a pair of reptile like dinosaurs running in a desert. Image credit: Ceri Thomas.

Two rat like creatures are seen fighting. Caption: Illustration by Velizar Simeonovski, copyright Darin Croft. From horned armadillos and rafting monkeys: The fascinating fossil mammals of South America.

Bright neon green waves crash to shore with text below that reads, "Harmful Algal Blooms."

Computer rendering of a walrus perched on the shore, rearing is head back with mouth open, showing 4 long, thick teeth protruding from its gums on the top and bottom.

Still image from: Eons: How Volcanoes Froze the Earth (Twice)

Dickinsonia fossil from the Ediacaran that is symmetrical and round with rib-like segments that are radially inclined towards the wide end from a central ridge.

Still image from: Eons: The Biggest Frog That Ever Lived

An illustration depicts a theropod dinosaur, looking into a nest with eggs and newborn dinosaurs.

Still image from: Eons: The Dinosaur Who Was Buried at Sea

Still image from: Eons: The First and Last North American Primates

An illustration of a Daphoenus Demilo.

A cartoon shows the skeletal structure of a giant dinosaur.

Still image from: Eons: The Hellacious Lives of the "Hell Pigs"

A Wooly Rhino is grazing on the slope of a mountain.

A painting depicts scientists comparing Piltdown Man's remains to other species. Charles Dawson and Sir Arthur Smith Woodward are seen standing together.

An illustration depicts an old shepherd, wearing clothes made from animal leather, sitting on a rock.

Still image from: Eons: The Oddest Couple in the Fossil Record

An illustration depicts a pair of dinosaurs fighting each other.

Still image from: Eons: The Rise and Fall of the Tallest Mammal to Walk the Earth

Aerial view of a crocodile peeking its head up slightly above bright green water.

Still image from: Eons: The Sea Monster From the Andes

Still image from: Eons: The Story of the Dino Stampede

Man faces camera against a black background, gesturing with both hands out and forward.

An illustration depicts the dinosaur, Coelophysis, with new born Coelophysis in between its beak.

The sculpture, of a dragon sprawled, at the steps of Kinh Thien palace. Caption: Remains of Kinh Thien Palace.

$Computer rendering of how earth might have looked billions of years ago. It's mostly white and light gray with a fracture of blue down the middle along the horizontal axis.$

An illustration depicts the earth of 50 million years ago, with a supercontinent Laurasia. Caption, Paleographic animation by C R Scotese.

Computer rendering of a dinosaur skeleton depicting a creature with short front arms and a long tail that walks on its hind legs.

Herd of reindeer passes through a snowy clearing with tall trees in the distant background. Some reindeer lean down, pushing their snouts into the snow.

A giant deer roams a grassland.

An illustration of a hyaenodont. Caption: Illustration by Alan Turner and Maurico Anton.

A skull from the fossils of Homo floresiensis, and a rough sketch of the limbs of the fossil remains are presented.

A pair of Ichthyosaurs hunting prey in the sea.

A large group of penguins.

Still image from: Eons: When Rodents Had Horns

A painting of a flooded forest, and insects are seen crawling on the tree surface.

A group of Hippos and Giraffes are grazing in a forest.

A group of four legged terrestrial creatures. Caption: Synapsids.

Still image from: Eons: When We Met Other Human Species

An illustration of a male Woolly mammoth.

Fossilized remains of the skull of an animal with large teeth. Caption: from the evidence they left behind.

A close up of an imprint in the shape of a shell left in the rock. Caption: An imprint of the organism is left in the rock.

A diagram showing the transition from Reptiles (dinosaurs and crocodile-like animal) to Archaeopteryx (feathered animal between a reptile and a bird), to Birds. Caption: between birds and reptiles.

Illustration of a four-legged animal standing in shallow water on top of a layer of rock. Caption: Many things must happen for an animal to be fossilized.

An illustration of a dinosaur standing on two legs with large teeth and an open mouth. Caption: Roar!

Still image from: I'm a Afrovenator

Still image from: I'm a Daspletosaurus

Still image from: I'm a Diplodocus

Still image from: I'm a Eotyrannus

Still image from: I'm a Giganotosaurus

Still image from: I'm a Herrerasaurus

Still image from: I'm a Masiakasaurus

Still image from: I'm a Nothronychus

Still image from: I'm a Panoplosaurus

Still image from: I'm a Pteranadon

Still image from: I'm a Sinornithoides

Still image from: I'm a Sinosauropteryx

Still image from: I'm a Smilodon

Still image from: I'm a Stegosaurus

Still image from: I'm a Supersaurus

Still image from: I'm a Tyrannosaurus Rex

Still image from: I'm a Ultrasaurus

Still image from: I'm a Woolly Mammoth

Color illustration of early humans wearing animal skins and carrying spears through a mountainous, snow-covered landscape.

Man in glasses parts lips in mid-speech. Bookshelves and art supplies line walls in background. Title card reads, "How to fly. Stay in the air."

Illustration of an animal with a long neck and dinosaur-like head emerging from the water. Spanish captions.

Central point of light surrounded by nebulous cloud-like structures and glowing light. Caption: The intense light of a supernova travels outward,

Color illustration of a grimacing dragon walking through a hazy forest.

Street view of the entrance of a large, ornate stone building with 4 Roman-style pillars and wide stairways leading up to it. Several banners advertising different museum displays hang on the building or between pillars.

The front of a large building with animal scenes carved into the cement at the top of it. In front of the staircases leading up to the entrance is a gray statue of 2 large cats crouching with text underneath that reads, "La Brea Tar Pits and Museum."

Complex diagram indicating the relationship of different species of organisms. Caption: and are separated on the theropod family tree.

Two people with tools in their hands in a desert-like setting, digging in a mound of earth. Caption: Searching for these 112 to 98 million-year-old remains,

A woman seated at a desk in a suit jacket surrounded by books and preserved specimens. Inset picture: Bear-like creature - Caption: Beardogs! … They're a thing. As named, they resemble a mash-up for a bear and a dog.

Fossilized outline of a fish in stone. Caption: and eventually turns to stone.

Person holding a large animal skull. Caption: The teeth on this thing are huge.

illustration of Coelophysis. On screen text, dinosaurs. Caption: Female, Coelophysis lived about 220 million years ago.

Person speaking. Caption: To de-extinct a species requires finding viable DNA,

Skull of a dimetrodon and a human side by side. The temporal opening on both skulls is highlighted. Caption: allowing for improved chewing and biting capabilities.

Host Emily talks to Lance Grande at the Fossil Lake in Wyoming. Caption: One of the longest-lived lake systems we know of

Two people sitting side by side at a table working on something under a bright light. Caption: Then you scrape the matrix from the fossils.

Person holding a fossil of a spiral shaped animal. Caption: Hildoceras bifrons is an extinct species of ammonite

Illustration of a giant shark dwarfing the whales it swims with and is about to bite into one. Caption: megalodon was maybe 50 feet, or 15 meters, in length.

A diagram titled, ghost lineage, shows cars of different ages.

Person speaking. Caption: Well, today we're gonna talk about mammalian diversification.

Large skeleton with tusks in a museum. Mastodons were around about 20 million years before mammoths. Caption: Mastodons were on Earth before mammoths,

Illustration of large mammals with curving tusks. Caption: and many of his paintings hung with the articulated skeletons

Person gesturing towards preserved remains of a dinosaur. Caption: This shape tells us that it's a meat-eating dinosaur.

Black and white photo of a partially exposed fossil in the ground. 1900 field museum geology expedition (in which the brachiosaurus is found). Caption: It was declared the largest dinosaur known

Person using a wooden mallet to break open a stone. Caption: About half have something in them.

A large ship is in the water piping fossil fuels. An expanded view from the ship depicts a man researching in a lab setup. Caption: What happens over the last 70 million years.

Illustration of globular organisms with fine hairs projecting from their body. Caption: When they die, their shells become part of the sediment.

Cartoon of a group of large cat-like animals with two protruding fangs. Caption: (narrator) This tells us a little about the life of baby saber-tooths.

Illustration of a man standing with his arm out to touch a skeleton so large most of it is not captured in the image. Caption: the first model of a complete dinosaur skeleton.

Cartoon characters in prehistoric times standing among large dinosaurs. Caption: They're even good mothers.

Barren, brown landscape with low, flat-topped hills. Caption: This is a journey into a very, very distant past.

Dinosaurs running across a sandy expanse bordered by low trees. Caption: This area was home to some of the iconic dinosaurs --

Partially exposed fossil in rocks and sand. Caption: We may not have that in any other specimens.

Person carefully handling a very small humanoid skull. Caption: that researchers dubbed "the hobbit."

Bones of a skeleton laid out in relation to each other. Caption: In 1974 scientists found Lucy -- a hominid species

Person kneeling on the ground and reaching for an object. Caption: It's the ancient graveyard of a lost civilization.

Rocky hillside with a few small plants. Caption: this barren desert was covered by a vast inland sea.

Still image from: Wild Explorers: Cami Interviews a Paleontologist

Still image from: Wild Explorers: Dinosaur Top Ten!