1. Analogously , northern individuals of Edmontosaurus may well have had a more generalized diet than their southern counterparts.

2. When Edmontosaurus chomped down, its top teeth would splay outward, sliding across the bottom teeth and grinding up its leafy meals, suggests a new study.

3. Join Scar, a young Edmontosaurus embarking on his first thousand-mile migration. It is a journey for survival that is fraught with danger; blizzards, volcanic eruptions and deadly predators lie ahead.

4. Many hadrosaurs in other parts of the world had head ornamentations, or crests , but Edmontosaurus did not.

5. Specifically, paleontologist Mark Purnell of the University of Leicester in England and his colleagues found four sets of striations oriented in different directions on the teeth of Edmontosaurus.