Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 ...

Ankylosaurus's distinctive plates did more than deflect blows—they could also be used as weapons. At the end of the animal's tail, a series of plates were fused together and held aloft by tail ...

Discover facts, figures and images for more than 300 dinosaurs. From slow, plant-eating giants to fierce scavengers and hunters, dinosaurs once dominated the land. Search our alphabetical list, or ...

Ornithischians were one of the two major groups of dinosaurs and included such familiar species as the armor-plated Stegosaurus and Ankylosaurus and the three-horned Triceratops. Lesothosaurus was ...

how an Ankylosaurus defended itself with its tail, and the differences between Pteranodons and other flying dinosaurs like the Dimorphodon in "Jurassic World," starring Chris Pratt and Bryce ...

This unit takes a variety of approaches to the theme of dinosaurs. In the first session ... the activities of different species, such as the Ankylosaurus, Triceratops, Deinonychus and ...