The Norn Terrarium is the perfect home for Norns -- it's stacked with food, toys, and is fairly safe. The ecosystem of the Norn Terrarium is based on a temperate earth climate very similar to the United Kingdom. There are more species of creatures in this Terrarium than in any of the other four areas on the ship. Many of the species eat a general diet of bugs and pests, so there is a large bias towards insect eaters of various kinds.