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 …

Quick facts about dinosaurs for kids and grown-ups! Find out what dinosaurs ate, how they may have behaved, what they may have looked like, and more.

Mar 1, 2026 · 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.

May 13, 2025 · Dinosaurs were not the first reptiles to dominate the Earth. Dinosaurs lived for over 150 million years, which is much longer than modern humans. Dinosaurs evolved into birds, which means …

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

Mar 13, 2017 · Explore the world's most exciting prehistoric creatures with our fun dinosaur facts, ranging from the carnivorous T-rex to the stubby-legged ankylosaur.

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 …