Great whites may have wiped out the biggest shark that ever lived CNNGreat white sharks may have driven megalodons to extinction QuartzThe Prehistoric Megalodon Shark May Have Been Killed Off by the Great White Popular MechanicsMegalodon: World's Biggest Shark—Which Grew up to 50ft—Was Wiped Out by the Great White, Study Says NewsweekMegalodon is definitely extinct—and great white sharks may be to blame National GeographicView full coverage on Google News