This illustration provided by J. J. Giraldo depicts a 16-meter (52-foot) Otodus megalodon shark predating on an 8-meter (26-foot) Balaenoptera whale in the Pliocene epoch, between 5.4 to 2.4 million years ago. At background right, a 4-meter (13-foot) Carcharodon shark seizes a 2.5-meter (8-foot) juvenile of the whale pod. 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 Wednesday, Aug. 17, 2022, in the journal Science Advances.