Recent analyses of fossilized jaws suggest that massive, kraken-like octopuses were top predators in the seas 100 million years ago, rivaling other marine reptiles. These ancient octopuses, ranging from 7 to 19 meters in length, had tough beaks capable of crushing hard prey. Researchers used digital fossil mining to study ancient octopus remains from Japan and Canada, revealing their significant size and predatory capabilities. The findings highlight the need for further exploration of octopus fossils to understand their role in ancient marine ecosystems.