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 ...

Scientists have recently documented a behavior that looks almost comedic at first glance: an octopus suddenly reaching out and striking a nearby fish. Divers have filmed these moments in detail, and ...

(via SciShow) Octopuses are smart. Like, gather a posse of fish to do their hunting for them smart. And when the fish step out of line, the day octopus punches them. Really.