Plio
Search results
Learn about dinosaurs, a diverse group of reptiles that include birds and their extinct relatives. Find out how dinosaurs evolved, what they looked like, how they behaved, and why they became extinct.
Jun 29, 2018 · Learn about the diversity, ecology, and extinction of dinosaurs in this video from National Geographic. Discover which dinosaurs were the largest and the smallest, what they ate, and how they behaved.
4 days ago · 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. Most died out by the end of the Cretaceous Period.
Dinosaurs. Dinosaurs gambol and charge through our imagination as scaly reptilian creatures with menacing teeth, claws, spikes, and hammering, bony bulbs. They roamed Earth roughly 175 million years ago, and most were wiped out by an extinction event roughly 65 million years ago.
Jul 31, 2019 · Learn about the two leading theories for what killed the dinosaurs 66 million years ago: a giant meteor impact or massive volcanic eruptions. Find out the evidence, the challenges, and the latest research on this scientific mystery.
Oct 27, 2009 · 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 called the...
Learn about dinosaurs, the diverse group of reptiles that dominated Earth for millions of years. Explore articles on feathered dinosaurs, brontosaurus, velociraptor, tyrannosaur, and more.
