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    KEVIN00Chobotnice
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    Ethereal ‘Glass Octopus’ Captured On Camera By Deep-Sea Scientists
    The rarely seen deep-sea creature is the star of beautiful footage from a Schmidt Ocean Institute research vessel.

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    Octopuses Are Building Underwater 'Cities'
    Underneath the waves lies a lost city, home to untold riches and guarded jealously by the strange creatures who make their homes within its confines. Well, the riches are all shellfish, but "Octlantis," a newly discovered settlement inhabited by around a dozen common Sydney octopuses, does have some strange residents.

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    Untangling The Long-Armed Mystery Of The Bigfin Squid
    The elbowed, spindly appendages of the bigfin squid have long stunned the public. But scientists say there is more to this deep-sea dweller than its ghostly appearance.

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    Octopuses feel pain and need legal protection
    When you think of an octopus or lobster, what comes to mind? Seafood or intelligent marine life?
    A group of Conservative MPs think it's the latter and argue they should be included in a law to protect animals.
    The Animal Welfare (Sentience) Bill recognises animal sentience - which is the capacity of animals to have feelings, including pain and suffering.
    It currently says fish, and other vertebrates which feel pain, should be protected as much as possible.

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    Fossils may hold clues to climate change, says BGSU paleobiologist
    Newswise — A Bowling Green State University paleobiologist‘s research into the life and death of an ancient mollusk might uncover clues about the next global warming event on Earth.
    Dr. Margaret “Peg” Yacobucci, a BGSU geology professor in the School of Earth, Environment and Society, studies the evolution and extinction of marine life, specifically a class of cephalopods known as ammonites.

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    Fishermen catch amazing orange octopus off north Norfolk
    A fisherman has shared pictures of a brightly coloured octopus caught off the north Norfolk coast.

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    Mandurah dolphin doing an 'occy toss' in estuary
    The Hammond family captured this amazing footage last week of a dolphin 'playing' with it's food.
    This unusual behaviour raises the question of why dolphins do this.
    Is it hunting? Playing? Protecting it's young?

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    What is it like to be a cuttlefish?
    Aren’t they precious? (◕‿◕)♡
    But the cuttlefish is more than a pretty thing to look at. Having a large and complex nervous system, the cuttlefish is considered one of the most intelligent creatures on the planet.

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    Beautiful blue-ringed octopus emerges from clever seashells camouflage:
    https://abcn.ws/36zDze2
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    Octopuses at Cottam Point Jan 20 2021
    https://www.youtube.com/watch?v=3JlVm4p5SFA&feature=emb_title
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    Sparkling Clouds and Other Wild Ways Cephalopods Use Ink
    https://www.youtube.com/watch?v=vIkmO9-bICM
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    Examples of arm deformation types in an octopus (O. bimaculoides).
    https://www.youtube.com/watch?v=YRoLxJ9FjJk&feature=emb_title
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    Study reveals a diverse cephalopod fauna in the canary current large marine ecosystem
    An extensive review of cephalopod fauna from the Northwest African Atlantic coast was performed by researchers from the University of Vigo (Spain) and the Spanish Institute of Oceanography (IEO). The study was based on the collections gathered in 1,247 bottom trawl stations carried out during ten multidisciplinary surveys in the Canary Current Large Marine Ecosystem

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    https://twitter.com/UnderseaTV/status/1354110581410676737?s=20
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    Terrific overview of octopus biology
    The octopus in general, and the nature of its intelligence in particular, remain a mystery in many ways. This great rundown of what we know includes lots of lovely footage of these delightful creatures.
    And one more thing, there was recently a report about the tendency for an occasional octopus to punch a fish now and then. I wasn't super-happy with how this was presented, because many reports anthropomorphized our 8-legged friends, saying it was for "no reason." That concept is very anthropocentric, as empathy and impulse control are probably not well evolved among octopodes. So while it's OK to wonder why Marquis Ventura blasted Rick Moranis and several others in the face for "no reason," an octopus is probably behaving that way for a different set of reasons.

    The Insane Biology of: The Octopus
    https://www.youtube.com/watch?v=mFP_AjJeP-M&feature=emb_title
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    I chobotnice mají záchvaty vzteku. „Fackují“ během nich ryby
    Chobotnice jsou fascinující živočichové, kteří se vyznačují mimořádně vysokou inteligencí. Pokud ale zrovna mají špatnou náladu, nejdou daleko pro ránu. Alespoň podle výzkumu zveřejněného v žurnálu Ecology.

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    CEPHALOPODS’ INVISIBILITY POWERS COULD SOMEDAY BE OURS, NOW THAT WE KNOW HOW TO CONTROL THEM
    If you’ve ever wanted your own invisibility cloak, just like Harry Potter's, it could soon be (sort of) possible.

    The wizardry of changing color, or at least wearing something which changes color, might be more than just fantasy. Reflectins are the light-reflecting proteins that make cephalopods like squid, octopi, and cuttlefish such masters of disguise. These proteins reflect light to help a cephalopod disappear into its surroundings so it seems invisible to predators. Now scientists at UC Irvine have finally figured out the structure of reflectins at a molecular level and are able to manipulate them — almost like magic.

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    Octopuses Are Eight-Armed Taskmasters
    Even a crafty hunter like an octopus sometimes needs help. On tropical coral reefs around the world, the day octopus scours the seafloor in search of tiny mollusks and crustaceans that hide within calcified crevices. But every so often, this prey eludes the octopus’s many-armed grasp. Unfortunately for the fleeing prey, groups of fishes—sometimes four or five different species—might be lying in wait, ready to cut off its escape and leaving it within the octopus’s reach.

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    https://phys.org/news/2020-12-reveal-molecular-secrets-cephalopod-powers.html
    Reflectins, the unique structural proteins that give squids and octopuses the ability to change colors and blend in with their surroundings, are thought to have great potential for innovations in areas as diverse as electronics, optics and medicine. Scientists and inventors have been stymied in their attempts to fully utilize the powers of these biomolecules due to their atypical chemical composition and high sensitivity to subtle environmental changes.

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    Molecular Secrets of Cephalopod Skin
    Cephalopods—a class of marine animals that includes squids, octopuses and cuttlefish—can readily change the appearance of their skin to blend into their surroundings or mimic other species. These stunning camouflage abilities come from optical components in the skin, such as light-reflecting cells and pigmented organs, along with an underlying musculature that alters the skin’s texture and shape.

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