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The images of the silvery, three-meter long cephalopod, looming out of the darkness nearly 1 km below the surface, were taken last July near the Ogasawara islands, 1,000 km south of Tokyo. A rare octopus from the tropics (a female argonaut octopus or paper nautilus) has surfaced in Southern California, scooped up by a fisherman off the coast near Los Angeles, marine aquarium officials said.
The system may have produced a special kind of evolution based on RNA editing rather than DNA mutations and could be responsible for the complex behaviour and high intelligence seen in cephalopods, some scientists believe. The "cockeyed" squid Histioteuthis heteropsis (aka strawberry squid) has one normal eye and one giant, bulging, yellow eye.Previous research showed that octopus arms are capable of movement on their own, finding food by touch.Now a study shows that octopuses can use visual information to direct the movements of their arms, and that they seem to get more accurate with practice.The large eye is specifically adapted for gazing upwards, searching for shadows of fellow sea creatures against the rapidly fading sunlight, while the small eye is adapted for gazing downwards, scanning deeper, darker water for flashes of bioluminescence. Inky the octopus didn't even try to cover his tracks.By the time the staff at New Zealand's National Aquarium noticed that he was missing, telltale suction cup prints were the main clue to an easily solved mystery.Fishy flavoured lollies are the order of the day for one giant octopus in Newquay.
Mr Tickle, who lives at the Blue Reef Aquarium in the town, has been given the snacks as part of an ongoing environmental enrichment programme.
"There were always witnesses and rumours that said squid were seen flying, but no one had clarified how they actually do it.
We have proved that it really is true." Neon Flying Squid can fly more than 30 metres through the air at up to 11.2 metres per second.
There are many things that make the octopus a strange creature, but one of them is that each of its eight arms has an essentially infinite number of positions, and yet each arm operates independently.
How does an octopus keep from tying itself in knots?
Biologists at Woods Hole filmed the octopuses at super-slow speeds to find out how they do it.