The yellow-tailed squirrel is a species of rodent in the family Sciuridae. The yellow-tailed squirrel is found in the forests of North America, from Alaska to Newfoundland. The yellow-tail is the largest member of the genus Tamiasciurus, and is one of the largest tree squirrels in North America. The yellow-tailed squirrel has a body length of 20 to 25 cm (8 to 10 in), and a tail length of 15 to 20 cm (6 to 8 in). The fur of the yellow-tail is brown on the upper body, and pale on the underside. The tail is yellow, and is tipped with black. The yellow-tail is a arboreal creature, and is most often seen in trees. The yellow-tail is an omnivore, and feeds on a variety of plant and animal matter.