Last night, SyFy premiered the latest in the "Sharknado" series. The well's going to run dry on that real soon, since there's a finite number of ideas for that "franchise".
Meanwhile, let's turn the clock back 40 years and scope out this Wonder Twins short, as Zan & Jayna have to help two boys avoid a "Shark".
That had to be one of the biggest sharks ever. I think what happened is that what was originally meant to be a great white shark may have mistakenly started as a whale, and then the artists realized their mistake, but too late to redesign the predator.