Dinosaurs Classes

Trace how geophysical data, rocks, and fossils reveal the buried Chicxulub impact and its global consequences.

Follow the conveyor belt of replacement teeth that keeps a shark feeding and leaves a rich fossil record behind.

Read Connecticut through its rift-basin ridges, dinosaur tracks, glacial coast, and the river towns built between rock and water.

Follow Verne's coded clue from Icelandic volcanoes into a prehistoric underground world—and back out through the science behind the fantasy.

Follow a fossil from burial and mineral change to uplift, field discovery, preparation, and scientific interpretation.

Follow layered seafloor deposits, microscopic fossils, proxy calibration, age models, and the evidence behind ocean histories.

Rapid burial, mineral fill or molds, and layered rock turn rare remains into a deep-time archive.

Read deep time through strata, isotopes, fossils, moving continents, mass extinctions, and the evidence that keeps Earth history testable.

Energy is the master resource behind every part of modern life — and the fossil fuels that supplied it are changing the climate. This course connects the two honestly: how combustion warms the planet,

Sort out the world's energy sources: which ones nature keeps refilling (solar, wind, hydro) and which limited fossil fuels we're burning — and why the difference matters.

Follow a carbon atom as it loops from the air into plants, through animals, and back again, and see how burning fossil fuels tips the balance.

Follow the clues, fossils, shared bones, matching DNA, and evolution caught in the act, that together make the case for how life changes over time.

Every dinosaur belongs to one of two great families, and the secret is in the hips. Meet the lizard-hipped and bird-hipped dinosaurs.

About 66 million years ago a giant asteroid struck Earth. Follow the evidence for the day the age of dinosaurs ended.

Paleontologists are detectives of deep time. From a single tooth, a footprint, or a scrap of fossil dung, they rebuild whole vanished worlds. Learn how scientists piece together what ancient landscapes, animals, and food webs were really like.

How do scientists know a rock is a billion years old? Inside every rock sits a hidden clock made of decaying atoms. Learn how half-lives let geologists read the true age of rocks, fossils, and the Earth itself.

Nobody ever photographed a living dinosaur. Discover how scientists and artists rebuild them from bones — even their colors.

Meet the scientists who dig up the past. Follow a fossil from a dusty hillside all the way to a museum lab.

From tiny microbes to dinosaurs to us, life on Earth has transformed over billions of years. Take a journey through deep time.

The sparrow at your window is a living dinosaur. Follow the fossils that show how feathers, folding wrists, and hollow bones turned small meat-eating dinosaurs into the birds of today.

The way we picture dinosaurs keeps changing. See how new fossils fixed old mistakes — proof that science improves itself.

Fossils are real clues left in the rock. Learn how they form and how scientists read them to picture life from long ago.

Five times in Earth's long history, life was nearly wiped out. Meet the Big Five mass extinctions, from the icy end-Ordovician to the asteroid that ended the dinosaurs, and see how the planet recovered each time.

The sparrow at your window is a living dinosaur. Follow the fossil evidence that shows birds are the feathered cousins of T. rex.

Not all fossils are dinosaur bones! Discover the different types — from bones turned to stone and molds and casts, to insects trapped in amber and footprints left behind.

Dinosaurs left footprints that turned to stone. Learn how scientists read these tracks like a detective to figure out a dinosaur's size, speed, and even whether it traveled in a herd.

Some dinosaurs munched leaves all day, and others hunted for meat. Learn how their teeth, bodies, and habits show us what each dinosaur ate.

How does a soft, living animal end up as solid stone millions of years later? Follow the whole amazing journey — burial, turning to stone, and discovery — that makes a fossil.

Fossils are clues from long ago, hidden in the rocks. Learn what fossils are, how brave fossil hunters find them, and meet Mary Anning, one of the greatest fossil hunters ever.

Yes — even dinosaur poop can turn to stone! Fossilized dung is called a coprolite, and it hides amazing clues about what dinosaurs ate. Get ready for the science of ancient poop.

Meet the superstar dinosaurs everybody knows — the mighty T. rex, the horned Triceratops, the plated Stegosaurus, and more. Learn what made each one special.

Dinosaurs were not make-believe monsters — they were real animals that truly lived long, long ago. Discover how we know they were real, from the bones in the ground to the birds in the sky.

Dinosaur bones have been found on every continent — even icy Antarctica. Travel the globe to see which dinosaurs lived where, and learn why the world looked so different back then.

Some dinosaurs were taller than a house, and some were as small as a chicken. Meet the giants and the tiny ones, and see how they measure up to you.

How a trick of the eye became an art form — from spinning zoetropes and hand-drawn dinosaurs to Disney's gambles, anime's parallel world, and Pixar's bet on computers.

Discover how to tell crocodiles from alligators and meet these armored, ambush-hunting cousins of the dinosaurs, from gentle moms to record-breaking giants.

The real science of dinosaurs: what actually defines one, the three ages they ruled, how a 70-tonne body worked, the truth about feathers and color, and the impact that ended it all except for the birds still with us.

Discover how fossils form, the amazing kinds you can find, and the real hunters who dug up dinosaurs.

Ancient ocean navigators that outlived the dinosaurs, now fighting to survive us.

Stomp back in time to meet the dinosaurs and discover how their world ended!

Stomp back in time to meet the giant dinosaurs!

Meet the dinosaurs that lived long, long ago!