Terrestrial animal Terrestrial animal The term terrestrial is typically applied for species that live primarily on the ground, in contrast to arboreal species, which live primarily in trees. There are other less common terms that apply to specific groups of terrestrial animals: Terrestrial invasion is one of the most important events in the history of life. Terrestrial lineages evolved in several animal phyla, among which vertebrates, arthropods, and mollusks are representatives of more successful groups of terrestrial animals. Terrestrial animals do not form a unified clade; rather, they share only the fact that they live on land. The transition from an aquatic
Long-tongued arboreal mouse Long-tongued arboreal mouse The long-tongued arboreal mouse ("Rhagomys longilingua") is a South American rodent species of the family Cricetidae. It is found in a variety of habitats, including dense forest, in Bolivia and Peru at elevations from on the eastern side of the Andes. The species is at least partly arboreal. It is distinguished from the Brazilian arboreal mouse ("R. rufescens"), the only other known member of "Rhagomys", by spiny fur and certain skull features such as the presence of beading in the interorbital region. The adult long-tongued arboreal mouse weighs in the range and has a tail that is