'Gigantic' ancient octopus used jaws to crush prey and hunted alongside the dinosaurs 100M years ago: study

A study by Hokkaido University researchers revealed that ancient octopuses lived 100 million years ago, coexisting with dinosaurs and reaching lengths up to 20 meters. Fossilized jaws found in Japan and Vancouver Island suggest these predators used powerful jaws to crush prey, challenging previous assumptions about marine food chains dominated by vertebrates.