Birds are avian dinosaurs, and phylogenetic taxonomy includes over 11,000 extant species in the group Dinosauria. Dinosaurs are a diverse group of reptiles [note 1] of the clade Dinosauria. …

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 ...

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.

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 …

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 …

Oct 27, 2009 · Scientists first began studying dinosaurs during the 1820s, when they discovered the bones of a large land reptile they dubbed a Megalosaurus (“big lizard”) buried in the …

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, …

Dinosaur Species Profiles: Provide detailed profiles of popular dinosaur species, including information such as their size, diet, habitat, and notable characteristics.

13 hours 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.

Dec 4, 2025 · Researchers have counted 16,600 fossilized dinosaur footprints and 1,378 swim tracks at a site in Bolivia that showcase a variety of behaviors and different theropods from the …