Land crustaceans are a group of arthropods that primarily live on land, although they are closely related to aquatic species. They belong to the class Malacostraca and include various species such as woodlice and pillbugs. These creatures have adapted to terrestrial life by developing a more efficient respiratory system and a hard exoskeleton to prevent water loss. Most land crustaceans are detritivores, meaning they feed on decaying organic matter, which helps recycle nutrients in the ecosystem. They typically prefer moist environments, as they require humidity to survive. Their presence is crucial for soil health and the overall balance of their habitats.