"The Great White — the man-eater of the Jaws horror movies"
Sort of like an article saying "Homicidal Alien, known from the movie of the same name..."
Yes, white sharks live in the ocean. Yes they feed on seals. They have done both for several thousands of years.
Feeding frenzy? A single bite of a seal is a frenzy?
Nothing like the media to stir up something out of nothing.
Whites are actually fairly cautious when it comes to feeding (especially when compared to, say, white tip reef sharks, who do go into a frenzy.) Whites tend to be quite cautious of unknowns, tend to hit prey hard once, and come back to feed when the prey has become somewhat subdued (i.e. bled out.)
The surfers and snorkelers that get hit along the west coast are usually exploratory bites. The fatalities are usually mistaken identity, as can be evidenced by the fact that humans are rarely consumed (by whites, anyway. No comment on tigers and bulls.)