Paleontologists have long believed that giant reptiles ruled the oceans in the twilight of the dinosaur age.A new study suggests another apex predator dominated the food chain: school-bus-sized octopuses resembling the mythical “kraken” monster.🔗: https://t.co/fzUWQdCaRd pic.twitter.com/HeJXXtxGXA— The Wall Street Journal (@WSJ) April 24, 2026