Opossum, or Possum, the common name for a family of American marsupials. (A marsupial is a mammal whose young are born so soon after breeding that they need to be protected from the outside world.
Tasmanian devils are scrappy little marsupials with jaws as strong as tigers'. But a deadly form of cancer is threatening to annihilate the species. Can scientists save the devils before it's too late? See more »
If you want to determine whether you've got your hands on a wallaby or a kangaroo, you're going to have to pry open the animal's mouth and examine its molars. See more »