Apatosaurus belongs to a group of dinosaurs called the sauropods. This group of herbivorous (plant-eating) dinosaurs consists of the largest animals that ever lived on land. An animal this size ...

Although it was much smaller than sauropods like Apatosaurus (Brontosaurus), which were also common at the time, quite possibly Allosaurus hunted in packs to bring down larger prey. Like many meat ...