A Dachshund puppy and a rescue dog have become the best of friends, with adorable footage showing the pair playing.

The video, shared to Reddit by u/TBra, shows the greyhound lovingly nibbling the smaller pooch’s head.

Not letting his smaller size affect him, the sausage dog fights back by going for the greyhound’s head – which is basically the same size as its entire body.

He continues to jump at his face before rolling over hoping for a play.

The older dog decides to simply plonk his head on the puppy’s body sparking laughter from those behind the camera.

The heartwarming video has received more than 19,000 upvotes since it was posted last month.

In the caption, the uploader explained: “I rescued a retired racing greyhound at the same time that my SO (significant other) got a Dachshund puppy.

“They became instant bros! I could watch them play all day.”

Another said: “Well done on adopting a retired greyhound! They are so adorable together, I too could watch them all day.”

A third commented: “I love them! Your greyhound looks so happy. Thank you for rescuing.”

It is not the only time dogs’ relationship with another creature has stolen the hearts’ of viewers.

A Dachshund puppy was filmed making best friends with some ducklings earlier this week.

Meanwhile, a golden retriever was filmed looking after a nest of bunnies who look at him as if he was their parent.