Giant sharks once roamed the seas, eating whale-sized meals in five bites

An illustration provided by J. J. Giraldo depicts a 16-meter Otodus megalodon shark predating on an 8-meter Balaenoptera whale in the Pliocene epoch, between 5.4 to 2.4 million years ago. The giant megalodon shark that roamed the oceans millions of years ago could have devoured a creature the size of a killer whale in just five bites, according to a study published Aug 17, 2022, in the journal Science Advances. – Photo: AP

Today's sharks have nothing on their ancient cousins. A giant shark that roamed the oceans millions of years ago could have devoured a creature the size of a killer whale in just five bites, new research suggests.

For their study published Wednesday, researchers used fossil evidence to create a 3D model of the megalodon - one of the biggest predatory fish of all time - and find clues about its life.