It's a video that has captured the attention of the online world.

A couple of dogs are frolicking through crystal clear waters with a group of large sharks in the shallows.

Nothing out of the ordinary it seems. "Apparently they do it all the time," says the narrator on the video.

But one of the dogs takes it a step further. He decides to round up the sharks and ducks down into the water to nip at one of them.

For a few moments the dog is underwater with the shark while the Aussie narrator yells excitedly.

"He's given him a bite. The dog's biting the shark!"

The dog then emerges victorious from the water and the sharks make a quick retreat, away from the new king of the sea food chain, the canine.