possum at umpherston sinkhole, mt gambier, south australia, australia

103 also america american americas and animal australia biology colonizers comprises conditions connection continents didelphimorphia diet diverse endemic entered flexible following gambier genera great habits hemisphere interchange known largest locations make marsupial marsupials more north opossum opossums order originated particularly possum reproductive sinkhole south species successful survivors their them two umpherston unspecialized western