
Dun dun. Dun dun. Dun dun dun dun dun dun dun dun.
This is so much worse than a Great White lurking on the beaches of Amity Island. Sawsharks are most obviously distinguished from other sharks by the row of teeth sticking out on either end of its long snout, which it uses to blade its victims.
Observe:

Muahahahhaaa.