Some octopuses that lived over 72 million years ago were as long as whales. These huge predators may have been the largest invertebrates ever.

The finned octopus lived alongside T. rex and may have been one of the top predators in the ancient ocean food chain.

Rare fossil finds show colossal octopuses were among the top ocean predators during the Cretaceous Period, according to a new study.

Giant octopuses may have ruled the oceans 100 million years ago, according to fossil evidence.

Giant, intelligent octopuses may have once ruled the ancient seas. Modern octopuses are known for their intelligence and ...

Locked inside fist-sized lumps of ancient rock from Japan and Vancouver Island, paleontologists found something that almost ...

A giant octopus, likened to a mythical creature said to be capable of dragging ships to their doom, roamed the seas during ...

The discovery challenges a 370-million-year-old assumption that only vertebrates could be top ocean 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.

The top predator prowling the seas during the age of the dinosaurs 100 million years ago may have been an octopus.

Whale-sized, monstrous octopuses prowled the seas during the Age of Dinosaurs, snatching prey with their huge tentacles and ...