A 125-million-year-old fossil reveals a newly discovered dinosaur covered in unusual spikes scientists have never seen before.

The “mesozoic cow” was a dinosaur with hundreds of ever-replacing teeth. Here’s how its uniquely adapted skull allowed it to ...

Feb 13 (Reuters) - On Feb. 20, 1824, English naturalist and theologian William Buckland addressed the Geological Society of London, describing an enormous jaw and limb bones unearthed in a slate ...

WASHINGTON, Jan 23 (Reuters) - Dinosaurs long dominated Earth's land ecosystems with a multitude of forms including plant-eating giants like Argentinosaurus, meat-eating brutes like Tyrannosaurus and ...

We know the main reason that the age of the dinosaurs came to an end: an asteroid impact on the Yucatán Peninsula some 66 million years ago. But how the dinosaurs’ reign began is far less clear—and ...

SCOTLAND -- This little guy is a big fan of dinosaurs and you can really tell. His uncanny knowledge of these thunder lizards allows him to name each toy dinosaur by sight as his mother presents them.

A 19th century dinosaur drawing filled with the drama and chaos they exemplified during this early era of dinosaur discovery. Smithsonian Library and Archives This year marks the 200th anniversary of ...

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 ...