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. Dinosaurs have fascinated kids and adults alike since the very beginning of the discovery of their existence.
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 . Jan 28, 2026dinosaur, 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.
Dinosaurs have long captured our imagination as reptilian creatures with menacing teeth, claws, spikes, and hammering, bony bulbs. 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.
Our brief introduction to dinosaurs reveals a key feature that gave them an advantage over other prehistoric reptiles. Dinosaurs are a group of reptiles that dominated the land for over 140 million. Dinosaurs are a diverse group of mostly land-based animals that are related to today's reptiles and birds.
In fact, while dinosaurs are commonly seen as extinct and known only by their fossils,. Jan 4, 2026sink your teeth into extraordinary dinosaur discoveries with the latest dinosaur news, features and articles from live science. Few subjects in the earth sciences are as fascinating to the public as dinosaurs.
The study of dinosaurs stretches our imaginations, gives us new perspectives on time and space, and invites us to discover.
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