It's a shark-eat-shark world out there.
A 16-foot-long great white shark was recently caught on video attacking another, smaller, great white in waters about 50 miles off the Australian shore, according to a clip posted on YouTube.
"The larger animal survived the encounter but the smaller shark has not been sighted since," the description reads.
“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," shark watcher Adam Malski, who recorded the footage, told the Telegraph. "The skipper responded, 'The big shark would take the smaller one down.'"
Seconds later, they saw that very scenario unfold, and caught the whole thing on video.
The larger shark has been nicknamed Gilbert.