Scientists have no clue what ate a huge great white shark off the coast of Australia.
Not long ago, a team of Australian marine biologists tagged a 9-foot-long female great white shark they dubbed "Alpha One," as part of a tracking program to study the species.
Four months later, a beach comber found Alpha One's tagging device and returned it to the biologists.
The data on the device revealed that something really frickin' big had eaten the shark whole.
This video from the Smithsonian has the rest of the story.
Australia's waters are filled with all sorts of frightening things.
If you don't believe me, check out this video.