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  1. Dinosaurs 101 | National Geographic - YouTube

    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 as surprising facts about their ...

  2. Dinosaur - Wikipedia

    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 …

  3. Dinosaur | Definition, Types, History, Names, & Facts | Britannica

    Nov 11, 2025 · 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.

  4. Dinosaur Facts - American Museum of Natural History

    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 …

  5. Dinosaurs - National Geographic Society

    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 …

  6. What is a dinosaur? - Science News Explores

    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. In fact, dinos are a …

  7. The Ultimate Dino Resource – Species, News, Facts, and Toys

    Explore various Dinosaur species, uncover fascinating dinosaur facts, stay updated with news, and discover the best dino toys, tv shows, featuring Dinosaurs.

  8. A photographer finds thousands of dinosaur footprints near Italian ...

    11 hours ago · A wildlife photographer has discovered one of the oldest and largest collections of dinosaur footprints in an Italian national park.

  9. Thousands of dinosaur footprints found on Italian mountain

    1 day ago · Thousands of dinosaur footprints dating back 210 million years have been found in a national park in northern Italy. The footprints - some of which are up to 40cm (15in) in diameter - are …

  10. The best dinosaur discoveries of 2025

    1 day ago · Dinosaur fossils have been common discoveries in the rapidly eroding Cretaceous Period-aged cliffs of the Isle of Wight, off the south coast of England, for nearly two centuries.