New analyses of fossilized jaws reveal that massive, kraken-like octopuses once hunted alongside other marine predators.

A jaw tip worn down by nearly a tenth does not sound like much until you picture what it means. Chipping, cracking, scratches and polish do not appear on their own. Something was hitting back. That is ...

Recent research has revealed a remarkable prehistoric octopus that may have been one of the largest cephalopods ever ...

(CNN) — Giant octopuses measuring up to 62 feet (19 meters) in length were among the top ocean predators around 100 million years ago, according to new research that uncovered rare fossils hidden ...

A new MBARI video showcases Japetella diaphana, a rare open-water octopus that switches between transparent and opaque orange to evade predators in the ocean's twilight zone, where a mother carries ...