@jdogg:That wasn't a mispelling. Opossums are different than possums.
Opossums (Didelphimorphia, pronounced /daɪËdÉlfɨËmÉ"rfi.É/) are the largest order of marsupials in the Western Hemisphere. They are also commonly called possums, though that term is also applied to Australian fauna of the suborder Phalangeriformes. - Wikipedia
Possums are Opossums, possum being the colloquial term which also encompasses a suborder, although the suborder are technically still opossums. /pedantic