Dinosaurs ruled Earth for more then 140 million years and are considered to be the ancestors of today’s reptiles. The Exo Terra Dinosaur Eggs Fossil Hideout adds a prehistoric accent to your terrarium and provides your pet with a safe and cozy multilevel hideaway. The hideout provides a shelter with multiple entrances for easy access and allows you to create a cool, moist microclimate inside the terrarium, which supports thermo-regulation and hydration and helps the natural shedding process of reptiles. It also provides a safe and cozy spot to hide and sleep.