A groundbreaking study published in the journal *Science* suggests that giant octopuses, referred to as 'kraken-like,' may have been among the top predators in Earth's oceans approximately 100 million years ago. This research challenges the long-standing belief that marine reptiles and sharks were the dominant species during the Cretaceous period. The study indicates that early octopuses could have reached lengths of up to 19 meters, similar to a semi-trailer truck. Researchers utilized a novel technique called 'digital fossil mining' to analyze fossilized jaws from Late Cretaceous sediments in Hokkaido Island, Japan. This method allowed them to uncover additional fossil remains, including those of two extinct octopus species: Nanaimoteuthis jeletzkyi and Nanaimoteuthis haggarti. The findings reveal that these gigantic cephalopods may have played a more significant role in ancient marine ecosystems than previously understood, suggesting a more diverse and complex food chain during the age of dinosaurs.