See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Underwater footage of an "incredible" moment shows a marine biologist ...

Scientists surveying marine life near Rotuma in the South Pacific caught something unexpected on camera: a day octopus appeared to punch a grouper fish on the seafloor. As strange as it sounds, this ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. An Octopus cyanea hunts with a blacktip grouper on one side and a blue goatfish on the other. (Eduardo Sampaio and Simon Gingins) ...

Add Yahoo as a preferred source to see more of our stories on Google. The above-average intelligence that octopi possess is displayed in myriad ways, from their problem-solving capabilities to their ...

A British holiday maker has struck up a friendship with a little octopus in Cyprus – meeting underwater every day. Matthew Hyatt, 28, met the sea creature when he was investigating a shipwreck nearly ...

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.