dinosaurs

7.4M views 5 years ago. 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... 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 timing of the evolution of dinosaurs is a subject of active research. Learn about every dinosaur that has ever lived, from raptors to tyrannosaurs and sauropods to ornithopods. This list spans the Triassic, Jurassic, and Cretaceous periods and includes interesting facts about each dinosaur. You'll find it to be hours of fun and there's a new dinosaur waiting for you to discover. 6 days ago · Learn about dinosaurs, the common name given to a group of reptiles that first appeared in the Middle Triassic Epoch and thrived for nearly 180 million years. Find out how dinosaurs evolved into birds, what they looked like, where they lived, and how they died out. Explore their fossil record, history, and discoveries with Britannica. From humble beginnings to tragic ends, here are some of our favourite dinosaur moments. Subscribe: http://bit.ly/BBCEarthSub #BestOfDinosaurs #Top5Compilatio... Learn about dinosaurs, the group of reptiles that have lived on Earth for about 245 million years and include modern birds. Discover how paleontologists study fossils, discoveries, and theories about dinosaurs' evolution, behavior, and extinction. All dinosaurs including Deluxe Edition dinosaurs.Sizes of T-Rex, Spinosaurus, Giganotosaurus, Ceratosaurus Spinosaurus roar are updated.If you want to know... Learn about the mass extinction event 66 million years ago and the evidence for what ended the age of the dinosaurs. Abundant fossil bones, teeth, trackways, and other hard evidence have revealed ... From adorable dinosaur babies to epic T-Rex battles, there is incredible dinosaur footage for all ages. Check out the playlists on the page to see all of the... Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years. If all of Earth time from the very beginning of the dinosaurs to today were compressed into 365 days (one calendar year), the dinosaurs appeared January 1 and became extinct the third week of September. Dinosaurs. The prehistoric reptiles known as dinosaurs arose during the Middle to Late Triassic Period of the Mesozoic Era, some 230 million years ago. They were members of a subclass of reptiles ... Dinosaur - Extinction Causes, Evidence, Theory: The mass extinction of dinosaurs 66 million years ago remains a misconception; the fossil record shows that dinosaurs were already in decline during the late Cretaceous. Proposed causes for the extinction of dinosaurs have included everything from disease, heat waves, cold spells, faunal changes, and an asteroid collision during the K–T boundary. Learn Dinosaurs for kids with Club Baboo! This half hour dinosaur cartoon compilation is great for kids to learn the names and sounds of dinosaurs. This vide...