The player battles numerous creatures before discovering that Xenomorphs also inhabit the planet. Many migratory animals naturally inhabit the plains area. They inhabit both grassland and arid regions. Apart from rivers, they inhabit swamps and lakes. Humans generally do not inhabit extreme environments. Storm Beasts are monsters that inhabit Malachor V. Over 4,000 species of fish inhabit coral reefs. Siphonophore species rarely only inhabit one location. Bivalves inhabit the tropics, as well as temperate and boreal waters. Due to their soft cuticles, termites do not inhabit cool or cold habitats. The adults usually inhabit shallow lagoons, feeding mostly on various species of seagrasses. Today five trout species inhabit park waters. Some may inhabit brackish environments, such as estuaries. Hundreds of bird species inhabit the zone as well. Nautiluses usually inhabit depths of several hundred metres.