A gigantic dinosaur more than 98-foot-long and weighing ... The long-necked giants were massive herbivores that roamed the Earth more than 90 million years ago, before the mass extinction event ...

An international team of paleontologists and Earth scientists has identified fossilized remains as a two-clawed therizinosaur ...

Where they lived: Dinosaur fossils have been found on every continent, including Antarctica. What they ate: Some ate plants, while others ate animals, including other dinosaurs. How big they were ...

and dust into the atmosphere that it kept sunlight from reaching Earth's surface. Temperature and plant production plummeted, and dinosaurs and many other organisms that were poorly adapted to the ...

Earth was populated by dinosaurs, who had been the dominant life form for nearly 200 million years. The Chicxulub impactor is widely thought to have changed all that, leading to the dinosaur’s ...

Dinosaurs ruled the Earth in the mighty Mesozoic. And 64 million years after dinosaurs went extinct, modern humans emerged in the Cenozoic era. The planet has seen an incredible series of changes ...

During this period, Earth's climate changed from hot and dry to humid and subtropical. 3 min read Dinosaurs, birds, and rodents. Crumbling landmasses and inland seas. Sea monsters, sharks ...

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 million to 230 million years ago in the Triassic Period, and went ...

The date corresponds perfectly to the date of the dinosaur extinction. Rare Metal The metal iridium, which is similar to platinum, is very rare on Earth's surface but is more common in asteroids ...

The end of the Cretaceous Period saw one of the most dramatic mass extinctions Earth has ever seen. Find out what brought about the end of the dinosaurs and many other animals too. The fossil record ...