Dinosaurs ruled the earth for more than 140 million years and are considered to be the ancestors of today’s reptiles and birds. The Exo Terra Dinosaur World hide out series are extremely realistic and adds a prehistoric accent to any type of terrarium; desert, rainforest or aquatic. The new hide outs have been designed with multiple entrances for easy access and adds an extra dimension to the terrarium setup. The moist microclimate inside the Exo Terra T-Rex Skull will support thermo-regulation and hydration, and aid the natural shedding process of reptiles. The perfect hiding place for your pet!