Prehistoric Life Prehistoric Secrets in Stone The Earliest Fossils The Silurian Reef Trilobites Fish The Coal Forests Early Reptiles and Amphibians Sea Reptiles Flying Reptiles The Teeming Seas Hunting Dinosaurs Biggest Dinosaurs Two-Footed Plant Eaters Plated and Armoured Dinosaurs Horned Dinosaurs The Mammal Age Dawns Grassland Mammals The Ice Age	Insects in Amber An insect may be trapped in resin that seeps from a tree. It will then be preserved when the resin is buried and turns to amber.   Previous: Back Book: Prehistoric Life Section: Prehistoric Chapter: Secrets in Stone