Over a thousand dinosaur species once roamed the Earth. Learn which ones were the largest and the smallest, what dinosaurs ate and how they behaved, as well ...

Dinosaurs are a diverse group of reptiles [note 1] of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and …

4 days ago · Dinosaur, the common name given to a group of reptiles, often very large, that first appeared roughly 245 million years ago and thrived worldwide for nearly 180 million years.

Mar 13, 2015 · Embark on a journey where North America’s largest moving, roaring, and breathing dinosaurs come alive in a fully immersive walk-through experience. Discovery awaits at every turn as …

Delve into these fast facts about dinosaurs for kids of all ages. Discover why the Tyrannosaurus had sharp teeth, where the name “dinosaur” comes from, and more! Dinosaurs are a group of reptiles …

Jun 6, 2024 · Complete guide to dinosaurs, with list of dinosaurs from each period. Dinosaur evolution, extinction, types, plus interesting facts.

Mar 27, 2025 · The word “dinosaur” isn’t a catch-all term for just any scaly, prehistoric giant. “There’s kind of a misconception that any big extinct thing was a dinosaur,” Smith says.

Scientists estimate over a thousand dinosaur species once roamed Earth. Learn which ones were the largest and the smallest, what dinosaurs ate and how they behaved, as well as surprising facts about …

23 hours ago · The semi-aquatic dinosaur, Spinosaurus mirabilis, was discovered by an international team of scientists working in Niger.

4 days ago · New dinosaur discovered in Sahara desert was a horned ‘hell heron’ 'Spinosaurus mirabilis' sported a 20-inch-tall ‘scimitar’ on its head. Andrew Paul Published Feb 19, 2026 2:00 PM EST