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
Arboreal salamander to 0.783 in ages >4 yr. These subspecies have been proposed in the past due to genetic and morphological differences, but they are not currently recognized. Arboreal salamander The arboreal salamander ("Aneides lugubris") is a species of climbing salamander. An insectivore, it is native to California and Baja California, where it is primarily associated with oak and sycamore woodlands, and thick chaparral. "Aneides lugubris" is SVL (snout-vent length), with plain purplish-brown coloring, usually spotted dorsally with gold or yellow, although it may also be unspotted. The tail is prehensile. The juvenile is dark overall, clouded with greyish color and fine