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

Study of fossilised beaks shows patterns of wear and suggests some ancient species were up to 19 metres long ...

The "enormous" creatures were active carnivores who routinely crushed hard shells and bones with their powerful bites.

(Rui Palma/iStock/Getty Images Plus) Long before Megalodon ruled the seas, something just as unsettling may have lurked in ...

Indeed, at 62-feet-long, this colossal octopus could grow up to six feet longer than the mighty mosasaur, a predatory marine ...

Unlike most of its invertebrate peers, octopuses gave up protective shells... But it seems that the sacrifice was totally ...

The ancient cephalopod, Nanaimoteuthis haggarti, appears to have been an apex predator that rivaled mosasaurs to rule ...

By Will Dunham WASHINGTON, April 23 (Reuters) - The Kraken is a huge tentacled sea monster from Norse folklore that drags ships and sailors down into the deep. During the age of dinosaurs, new ...

The ancient oceans were once ruled by giant 'kraken-like' octopuses that measured up to 62 feet (19m) long, new research ...

A study describes two species with powerful beaks, and possibly intelligent, that hunted in the Cretaceous seas ...

Researchers say giant “kraken-like” octopus relatives, some stretching nearly 19 meters, likely competed with apex predators ...

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