Further evidence is in that dogs really are the best.

A beagle in Australia adopted a baby possum after losing her litter of puppies. This is an unbelievably cute story of differences being overcome by love.

Molly lost her puppies at birth, but just a few days later, welcomed a new baby to mother. 

A baby possum jumped on her back and has been holding on tight ever since.

Poss — as the aptly named critter is called — was abandoned by her mother. The two now hang out on their cattle farm in Victoria as a bonded duo.

Molly even waits under the tree where Poss sleeps during the day — to keep a watchful eye on her new baby.