With white faces, naked tails and beady eyes, these critters might be mistaken for a very large rat, but they’re ... Opossum males (like most marsupials) have a two-headed penis.

In a fairy tale by the brothers Grimm, a pied piper’s music lures rats to their doom ... the small, carnivorous marsupials reach adulthood. For five more months, they gain weight that they ...

The crest-tailed Mulgara is a pint-sized, rat-like carnivorous marsupial that makes its home in the desert. It’s an unassuming creature which was thought to have been pushed out of its habitat ...