Living: One of the last and most numberous of all nose-horned dinosaurs, the Triceratops, walked in herds through forest, which looked almost like our time forests.

By Joe Tucciarone

If a Tyrannosaurus attacked a herd of Triceratops’, all the adults probably stood in a circle around the young dinosaurs protecting them. With the heavy head pointed downwards, these dinosaurs walked around, eating of the small plants. They might have used their horns to hold branches away from the head and probably fought with them like today deer’s. A hollow spot in the collar resisted shocks from the fighting males.

By Bjarne Hagensen

Around the hollow spots sat some blood-veins, which have served as a heater for the back and neck.

Skeleton: The Triceratops’ skull was longer than a third of the body. Its great collar worked, as on all other Ceratopsids, like a protector from Theropods

Classification problems: Variations in the skull confused the scientists to think that there were over 15 different species in the Triceratops family.

By Shiraishi Mineo

A deeper investigation concluded that all the variations were from only one Triceratops, but now, the scientists have agreed to a number of two or three different species.

Foot: Three fingers on each "hand" and all four fingers on the hind foot ended in a wide and short "claw" with a horned hoof on each "claw". Most Ceratopsids had toes with hoofs but some Protoceratopsids had sharp claws instead.