Petauroides volans (Greater Gliding Possum) is a species of mammals in the family ringtail possums. They are found in australasia. They are herbivores.
Definition: A depression caused by erosion by water or ice. Low-lying land bordered by higher ground; especially elongate, relatively large gently sloping depressions of the Earth's surface, commonly situated between two mountains or between ranges of hills or mountains, and often containing a stream with an outlet.