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.

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 ...

The underwater cameras got it all: The octopuses emerged from a cluttered bed of empty shells, arms unfurling like ribbons. Then, suddenly, a cloud of debris came spewing out from underneath their ...

Videos filmed by divers show that choking, blinding and sacrificing limbs are all in the cephalopods’ repertoire. By Joshua Rapp Learn The conger eel was the favorite, weighing at least three times ...