Could this fish have encountered another Great White shark? Do they attack each other? These are things scientists are looking at. It might also have been an orca, one of the few marine creatures known to attack Great White Sharks.
Others wonder about giant squid or the oft rumored giant octopus. Could it have been the prehistoric megalodon (a whale sized shark that presumably died out millions of years ago) or something else--something far older and far more frightening?