True possums are found only in Australia and some of the islands of Oceania. They are quite different to the North American opossum. Possums live in trees hollows and logs in their natural habitat, which is bushland, wet sclerophyll forest and tall eucalypt forest, and temperate rainforest.
Dissect definition, to cut apart (an animal body, plant, etc.) to examine the structure, relation of parts, or the like. See more.
retractor. 1  a person or thing that retracts. 2  Anatomy. a muscle that retracts an organ or protruded part. 3  Surgery. an instrument or appliance for drawing back an impeding part, as the edge of an incision. 4  a mechanism, device, or the like that regulates retraction: to adjust the retractor on a seat belt.