Tree squirrel Tree squirrel Tree squirrels are the members of the squirrel family (Sciuridae) commonly just referred to as "squirrels". They include over a hundred arboreal species native to all continents except Antarctica and Oceania. They do not form a single natural, or monophyletic group; they are related to others in the squirrel family, including ground squirrels, flying squirrels, marmots, and chipmunks. The defining characteristic used to determine which species of Sciuridae are tree squirrels is dependent on their habitat rather than their physiology. Tree squirrels live mostly among trees, as opposed to those that live in burrows in the ground or
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