A funny video has emerged of a dog protecting her new born babies from her owner.

The footage, shot earlier this year at a home near Toronto, Canada, shows Tilly attacking her owner's finger as he tries to touch one of her puppies.

"She was such a good mommy to her babies so I did give her the space she wanted," the filmer wrote online.

"As soon as Tilly's baby grew up she became my best friend once again."