A remarkable observation of a one-meter-long octopus displaying unexpected feeding behavior, targeting vegetable-like marine ...

Unlike most octopuses, which tackle their prey with all eight arms, a rediscovered tropical octopus subtly taps its prey on the shoulder and startles it into its arms. “I’ve never seen anything like ...

A wild octopus surprised an Australian diver this week by suddenly, and quite dramatically, inflating itself with water, ballooning up like a parachute. Later, when the diver posted a video of the ...

In lieu of a penis, the male has a special mating arm called a hectocotylus. In a new study published today in Science, ...

In the marine realm, diel vertical migration is a common feeding pattern: During daytime, zooplankton, fish and other marine life that feeds on these organisms hide in the darker depths of the ocean.

UC Berkeley marine biologist Roy Caldwell first saw the intriguing octopus in Panama, in 1977. It was pretty, and striped, and about the size of his little finger. He brought a few specimens back to ...

Scientists found that the male’s hectocotylus, the specialized arm for mating, is lined with receptors that can sense ...

Slowly sneaking up on its prey and carefully reaching an arm over to tap it on the shoulder, the larger Pacific striped octopus startles its food into its arms. As if this recently observed behavior ...

Scientists surveying marine life near Rotuma in the South Pacific caught something unexpected on camera: a day octopus ...

The deep-sea octopus is "rarely seen," per the Monterey Bay Aquarium Research Institute, which has only seen it four times in four decades Researchers collected detailed observations about the octopus ...

Unlike most octopuses, which tackle their prey with all eight arms, a rediscovered tropical octopus subtly taps its prey on the shoulder and startles it into its arms. "I've never seen anything like ...

A seldom-spotted deep-sea octopus was seen off of the coast of California in November, marking just the fourth sighting in as many decades. The evasive creature, called the seven-arm octopus, was ...