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 ...

Image caption, No youngster: the researchers reject Triceratops, with its shorter ... "In the four-legged herbivorous dinosaurs likeTriceratops, the skeleton changes as the animal grows; this ...

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 ...