The Dinosaur That Started Everything Before T. rex, before Jurassic Park, before the word “dinosaur” even existed — there was Iguanodon. It was only the second dinosaur ever scientifically named. Its teeth, found by the side of a road in Sussex in 1822, helped convince the world that giant reptiles had once ruled the Earth. … Read more
The Dinosaur That Spent a Century Wearing the Wrong Head For decades, museum visitors around the world stood in front of Apatosaurus and admired it, with a completely wrong skull bolted to its neck. A squarish, snub-nosed head from an entirely different dinosaur. The actual Apatosaurus head is narrow, long, and peg-toothed, much more like … Read more
One Small Dinosaur Changed Everything In 1964, palaeontologist John Ostrom dug up a fossil in Montana that helped transform how science understood dinosaurs. The animal he found was small, agile, birdlike — and nothing like the plodding, cold-blooded lizards scientists had assumed dinosaurs were. Its name was Deinonychus. Much of how we picture dinosaurs today … Read more
It Had Eight Feet of Breathing Tube on Its Head Before air reached its lungs, a Parasaurolophus breathed through nearly eight feet of hollow pipe curling up from its nostrils, over its skull, and back down again. That extraordinary structure — the crest — is one of the most unusual things any large land animal … Read more
The Longest Animal That Ever Walked on Land Picture a creature so long that its tail alone was roughly the length of a school bus. That was Diplodocus — and the tail was still just one end of it. From tip to tip, this animal stretched the length of two and a half double-decker buses … Read more
One of the dominant apex predators of the Late Jurassic Before T. rex ever existed, Allosaurus ruled. For millions of years, it was the top predator across a landscape that would become the American West — a massive, agile hunter with a skull built like a weapon and teeth that never stopped growing back. Al-oh-SAWR-us … Read more
Ankylosaurus (AN-kih-lo-SORE-us) Seventy million years ago, something walked through the forests of North America that was essentially a living tank — and it carried a massive tail club that may have been capable of delivering bone-breaking impacts. AN-kih-lo-SORE-us — “AN-kih-lo-SORE-us” Fast Facts When Around 68–66 million years ago — the very end of the Cretaceous, … Read more
Brachiosaurus (BRACK-ee-oh-SORE-us) Picture the largest animal you’ve ever seen. Now double it, give it a neck like a construction crane, and put it in a forest where even the tallest trees were snacks. BRACK-ee-oh-SORE-us — “BRACK-ee-oh-SORE-us” Fast Facts When Around 150–145 million years ago — Late Jurassic, back when North America was a warmer, wetter … Read more
Spinosaurus (Spy-no-SORE-us) One of the largest predatory dinosaurs ever discovered may have spent significant time in the water — and scientists are still arguing about exactly how it did it. Spy-no-SORE-us — “SPY-no-SORE-us” Fast Facts When Around 95–100 million years ago — back when the Sahara was a vast network of rivers and wetlands, long … Read more
Imagine a Dinosaur With Plates Bigger Than Pizza Trays on Its Back If you saw a Stegosaurus wandering past your house, you’d probably notice the giant plates first—its four tail spikes swinging like built-in spears. But the strangest part? Its huge back plates likely played roles in display, species recognition, and possibly deterrence. Stegosaurus looked … Read more