The genus Petaurus contains flying phalangers or wrist-winged gliders, a group of arboreal marsupials. There are six species, sugar glider, squirrel glider, mahogany glider, northern glider, yellow-bellied glider and Biak glider, and are native to Australia or New Guinea. All are omnivores, and eat tree sap, gum, nectar, pollen, and insects, along with manna and honeydew. Most flying phalangers appear to be solitary, though the yellow-bellied glider and sugar glider are both known to live in groups.