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Vicious great white shark battle caught on camera

Great white sharks don't fight each other often, but when they do, it's no-teeth-barred.

Screenshot by Michelle Starr/CNET

Two great white sharks duking it out, literally fang to fang, have been captured on camera 80km (50 miles) off the coast of South Australia.

Adam Malski, 33, was on a diving trip to learn more about the predators in the waters around the Neptune Islands. He was watching 4.8-metre Gilbert, a shark known to locals, from the deck of a boat as Gilbert swam up to eat some bait -- when a second, smaller shark appeared.

"The day where the shark attacked the other was surreal. I asked the dive master and skipper of the boat what would happen if a smaller shark got in the way of a larger shark," Malski told The Telegraph.

"The skipper responded, 'The big shark would take the smaller one down'. Literally six seconds later, that amazing scene was witnessed by me, the skipper and the dive master. They had never seen anything like it before. I believe that it is extremely rare footage, as great whites are elusive and still largely unknown creatures."

It's even rarer because great whites will usually avoid conflict with each other -- but in this case, the smaller shark went straight in for the attack, without hesitation. It's fascinating to see -- not least because sharks only have their teeth with which to inflict damage. It doesn't last long, though -- Gilbert has a clear size advantage.

Since the fight, Gilbert has been seen around the area as normal, but the smaller shark has vanished.