It has rough grayish-white hair, a long snout, dark eyes, and hairless ears. They have long tails. They can hang upside down. They have 50 sharp teeth. They hunt at night and eat just about any animal or vegetable.
Opossums hang upside down by their tails when sleeping.
Young opossums will sometimes hang upside-down by only their tails however they won't sleep in this position. Opossums WILL use their tails as a climbing aid. One will sometimes hold onto a branch with its tail while climbing down to a lower branch. The young opossums, when born, instinctively perform a 'swimming' motion, grabbing with their front paws, and kicking with their tiny back paws.