This prehistoric quadruped discovered on the coast of Peru was similar to a modern-day otter or beaver — except it was 13 ...

Here's how scientists know When you picture a dinosaur, what does it look like? Maybe you think of four-legged herbivores like Apatosaurus or Triceratops. Maybe you imagine large armored dinosaurs ...

including large crocodile relatives - both terrestrial and semi-aquatic - and various plant-eaters including elephant-sized ones related to mammals and four-legged armored reptiles. "Dinosaurs ...

FADEL: Well, one of the largest dinosaur track sites in the world. Here's Professor Edgar again. EDGAR: Four long trackways were made by sauropods. So these were herbivorous, four-legged dinosaurs ...

When you picture a dinosaur, what does it look like? Maybe you think of four-legged herbivores like Apatosaurus or Triceratops. Maybe you imagine large armored dinosaurs like Ankylosaurus or ...