The footage shows two dogs swimming in the ocean near the West Australian town of Broome, about 1,650 km northeast of Perth. The dogs appear to be herding several sharks toward shore, when one suddenly ducks under the water and attacks a shark. “The dog is biting the shark,” said Russell Hood-Penn in the voice-over as he video-taped the incident. “That is unbelievable. I’ve seen it all now.” Hood-Penn placed the footage on YouTube where it has been viewed more than 27 million times. When the camera pans out, a dead dugong can be seen beached on the shore. That is why the sharks were circling so close to shore.