I'll go by group; Theropods, Suropods, Horned, Plated, Armored, Bird-Hipped, and Duck-Billed dinosaurs
dinosaurs are the main ancestors
Some dinosaurs did have spines but most did not. The main body coverings of most dinosaurs were scales and feathers.
Most dinosaurs were herbivores. The main groups of herbivorous dinosaurs are hadrosaurs, sauropods, ceratopsians, stegosaurs, ankylosaurs, and pachycephalosaurs.
raptor
When the dinosaurs lived there were sea monsters but they were called marine reptiles and were not dinosaurs.
Album of Dinosaurs has 60 pages.
In the Presence of Dinosaurs has 189 pages.
In the Time of Dinosaurs has 229 pages.
It has a different shape from other dinosaurs and a main predator.
The dinosaurs have atleast 2 enemies. The 2 main enemies involved is the N'OUR and the MAR'IAM'M These enemies will often win fights.
Yes. All birds are direct descendants of dinosaurs and are considered by many to be dinosaurs.
No. Even when you include birds as dinosaurs grasshoppers cannot eat them for two main reasons. First, grasshoppers are herbivores, not predators. Second, grasshoppers are too small to prey on birds. However, birds often eat grasshoppers and many of the smaller non-avaian dinosaurs probably did as well.