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
Asháninka arboreal chinchilla rat Asháninka arboreal chinchilla rat The Asháninka arboreal chinchilla rat ("Cuscomys ashaninka") is a large species of chinchilla rats from the Andes of far northern Cusco in Peru. It was first scientifically described in 1999. The first specimen of this species was discovered by Dr. Louise Emmons, a researcher of the Smithsonian Institution from Washington, D.C., who found it by chance while climbing in the Vilcabamba Mountains near Machu Picchu. Emmons named the genus after the city of Cusco, and she named the species for the Asháninka people who live in Peru. The animal has grey fur, with a white nose