Scientists still debate the purpose of this dinosaur's iconic horns and spiky head plate. Find out what we’ve learned about how Triceratops lived and why it went extinct. Triceratops’ enormous ...

While this is one of the most famous dinosaurs, you may still be surprised by these interesting Triceratops facts. In This Article Despite the name, Tricerotops technically had only two true bony ...

There was definitely a mass extinction event 65 million years ago (probably related to a giant asteroid that smashed into Mexico's Yucatán Peninsula), and it did spell the end for most dinosaur ...

Take this quiz to find out your "dinosaur IQ" and check out CNN Films' "Dinosaur 13" Thursday, December 11 at 9p ET. Loading ...

The bones of Big John were discovered in modern-day South Dakota in 2014 The fossilised remains of Big John, the largest triceratops dinosaur ever found, have been sold at an auction in the French ...

Mark Norell, the museum's chairman of paleontology, shares some surprising facts about the biggest known dinosaur yet. Photo: American Museum of Natural History.