Whale sharks are the largest fish on the planet; the average whale shark is between ... The biggest risk they post to humans ...

Tail-whipping thresher sharks are giving fishermen some thrills on the ocean and plenty of steaks on the grill.

It appeared to be a juvenile, about 6 feet, with an additional 3-foot tail fin. The shark kept attacking fish that David was reeling in, but the shark couldn’t seem to bite them off the line.

As Jaws celebrates its 50th anniversary, Science News explores the vast range of shark sizes, from megaladon to the dwarf lanternshark.