This giant cephalopod dwarfed mosasaurs and other massive marine reptiles that lived during the time of the ...

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

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

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

The kraken — a gigantic, tentacled sea monster capable of dragging ships and sailors down into the depths — is a creature of Norwegian myth. But millions of years ago, a similar real-life animal ...

While dinosaurs ruled the land, Cretaceous oceans were home to a fierce and enormous octopus species that may have reached up to 19 metres in length, rivalling the size of the largest predators of the ...

Scientists have uncovered evidence of enormous, intelligent, octopus-like predators that dominated Earth's ancient oceans. These creatures, some up to 19 meters long, possessed bone-crushing beaks and ...