The massive invertebrates may have been top predators, according to an analysis of their fossilized jaws. The work suggests ...

The largest octopus alive today, in comparison, is the giant Pacific octopus. Per National Geographic, it tends to reach up ...

Long before Megalodon ruled the seas, something just as unsettling may have lurked in the depths – giant octopuses the size ...

Fossil jaws reveal giant prehistoric octopuses may have ruled ancient oceans as powerful apex predators during the Cretaceous ...

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

The kraken: a giant squid or octopus of myth, seems to have swam in the Cretaceous oceans, a Japanese study shows.

Below the waves, giant marine reptiles, such as the fearsome 4m (13ft) long mosasaurs, were the undisputed apex predators. In artistic reconstructions of these ancient oceans, cephalopods – the animal ...

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

“These giant octopuses likely occupied the same ecological tier and may have competed with marine reptiles and sharks within ...

Giant, fearsome octopuses may have once ruled the ancient seas, according to new research that flips the script on their ...

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

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