Cephalopods such as octopus and squid evolutionarily diverged from mollusks like slugs and snails. These animals have elaborate compact nervous systems located within specialized arm appendages, which ...

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

This newly discovered species of octopus is a deep-sea shapeshifter with large eyes and blood-red tentacles. Sounds terrifying? Don’t fret: these strange little guys are smaller than a golf ball.

A coalition of 182 organisations warns Japan's public funding for octopus aquaculture risks animal welfare, sustainability ...

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

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This unassuming octopus pairs bacterial chemistry with evolutionary efficiency to deliver one of the most powerful defenses in all of the ocean.