Konrad Wothe / Virginia Opossum (Didelphis virginiana) female hissing from tree cavity, North America

Christian Ziegler / Common Opossum (Didelphis marsupialis) walking on branch, Barro Colorado Island, Panama

Christian Ziegler / Common Opossum (Didelphis marsupialis) in tree, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Phil Savoie / Common opossum {Didelphis marsupialis} playing dead as defence strategy

Konrad Wothe / Virginia Opossum (Didelphis virginiana) young in mother's pouch, will nurse for three months before emerging, North America

Konrad Wothe / Virginia Opossum (Didelphis virginiana) young in mother's pouch, will nurse for three months before emerging, North America

Konrad Wothe / Virginia Opossum (Didelphis virginiana) female hissing from tree cavity, North America

Konrad Wothe / Virginia Opossum (Didelphis virginiana) female hissing from tree cavity, North America

Konrad Wothe / Virginia Opossum (Didelphis virginiana) female portrait in tree, North America

Konrad Wothe / Virginia Opossum (Didelphis virginiana) female hissing, North America

Konrad Wothe / Virginia Opossum (Didelphis virginiana) female hanging in tree by prehensile tail, North America

Konrad Wothe / Virginia Opossum (Didelphis virginiana) female in tree, North America

Thomas Lazar / Common opossum female with young on back {Didelphis marsupialis} USA - captive

Mary McDonald / Opossum babies in pouch {Didelphis marsupialis} Eastern/Southern USA

Mary McDonald / Opossum babies in pouch {Didelphis marsupialis} Eastern/Southern USA

Thomas Lazar / Common opossum with babies clinging to back {Didelphis marsupialis} Minnesota USA

Thomas Lazar / Common opossum in tree {Didelphis marsupialis} captive Minnesota USA

Mary McDonald / Opossum babies in pouch {Didelphis marsupialis} Eastern/Southern USA

Thomas Lazar / Common opossum with babies clinging to back {Didelphis marsupialis} Minnesota USA