Walking with Dinosaurs: Prehistoric Planet is an exciting adventure that transports audiences back to Cretaceous Alaska. The main characters in the story are a herd of large, frilled, plant-eating dinosaurs — Pachyrhinosaurus. The film follows their youngsters, and from the moment they hatch, they face predators, weather extremes and natural disaster as they fight for survival through the seasons. It's an epic yet intimate story, and audiences of all ages will empathize with them and their struggles, just as they do with animals in contemporary wildlife documentaries. The animals' bodies and movements have been precisely built up from fossil evidence, and their behavior is derived from paleontology and detailed knowledge of modern animal behavior, giving these creatures an amazing realism.