Opossums also have an opposable “thumb” on their hind feet, which further aids their climbing forays. And the opossum has more impressive tricks up its sleeve, or rather, in its pouch.

These investigations deal with domesticated species, such as the dog, and show that if raised without human contact the adult ... The Virginia opossum (Didel-phis virginiana), a marsupial, is ...

Opossums also have more teeth than any other North American mammal; back feet with an opposable digit ... the massive environmental change that we humans have wrought, they have been able to ...