Life in the ocean is perilous, and 78% of the captured octopuses were missing at least one arm due to encounters with ...

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 ...

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

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

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 ...

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 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.

Their bizarre bodies, blobby shape and unique intelligence rank octopuses among the most beloved creatures of the ocean. The 2020 documentary “My Octopus Teacher” was showered with accolades for its ...

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 ...