Tree shrews, such as the common tree shrew and painted tree shrew, are native to the tropical regions of Southeast Asia, India and southern China. These small, squirrel-like mammals are not actually shrews and are more closely related to primates.
Tree shrews are omnivorous, eating fruit, insects and small invertebrates. In the wild, some tree shrews are social, living in small groups and defending their territory from intruders. Most species are diurnal; only the pen-tailed tree shrew is nocturnal.