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The octopuses seen in the videos threw silt, shells, and algae at other nearby octopuses. To do so, they gathered up the debris underneath their bodies using their arms.
Opisthoteuthidae are a group of octopuses characterized by a web of skin in between their arms. They broad U-shaped shell that support muscles for a pair of small fins on the mantle, these fins are far less developed than other families in Cirrina and essentially only act as stabilizers when the animal swims (using a medusoid motion of the arms and webbing). [1]
Akkorokamui (Japanese: アッコロカムイ, Ainu: At-kor-kamuy) is a gigantic octopus-like monster from Ainu folklore, similar to the Nordic Kraken, which supposedly lurks in Uchiura Bay in Hokkaido. [1] It is said that its enormous body can reach sizes of up to 120 metres (390 feet) in length. [2] Its name can be translated as "tentacle ...
Strategies to defend themselves against predators include the expulsion of ink, the use of camouflage and threat displays, the ability to jet quickly through the water and hide, and even deceit. All octopuses are venomous , but only the blue-ringed octopuses are known to be deadly to humans.
To understand the inner details of octopus lives, researchers dived for about a month at a reef off the coast of Eilat, Israel, and tracked 13 octopuses for a total of 120 hours using several cameras.
In one creation myth, the god was planning inland to conquer Kadavu Island [5] through the river when a goddess [6] challenged him in the form of an octopus. [7] After a great battle, the octopus won by pulling out his teeth with her eight arms which enabled her to hold off the massive attack of Dakuwaqa, forcing Dakuwaqa to promise to never attack Kadavu again.
While octopuses generally avoid humans, attacks have occasionally been verified. For example, a 240-centimeter (8-foot) Pacific octopus, said to be nearly perfectly camouflaged, approached a diver and attempted to wrap itself around the diver and his camera. Another diver recorded the encounter on video.
An octopus in a zoo. Due to their intelligence, cephalopods are commonly protected by animal testing regulations that do not usually apply to invertebrates. In the UK from 1993 to 2012, the common octopus (Octopus vulgaris) was the only invertebrate protected under the Animals (Scientific Procedures) Act 1986. [48]