A new study found that some members of an octopus species hunt cooperatively in groups with fish. Video shows octopuses punching their companion fish to keep them on task and contributing to the hunt.

Octopuses typically have eight limbs that are called arms. Because the limbs have suction cups for its entire length, they are called arms instead of tentacles. Octopus arms can help the sea creatures ...

Octopuses in the Red Sea often hunt together with other predatory fish—and sometimes hit them. New videos suggest they're keeping fish in line. Day octopuses in the Red Sea team up with up fish to ...

The giant Pacific octopus (Enteroctopus dofleini), or GPO, is the largest and one of the most remarkable octopus species in the world. Known for their colossal size, some specimens can reach nearly 10 ...

Octopuses have often been thought to prowl the seafloor solo using camouflage. But a new study suggests that some have surprisingly rich social lives. A new study found that some members of an octopus ...