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  2. Cephalopod attack - Wikipedia

    en.wikipedia.org/wiki/Cephalopod_attack

    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.

  3. Pain in cephalopods - Wikipedia

    en.wikipedia.org/wiki/Pain_in_cephalopods

    Giant Pacific octopuses are able to recognise individual humans [66] and common octopuses can recognise other octopus individuals for at least one day. [ 67 ] In a study on social learning, common octopuses (observers) were allowed to watch other octopuses (demonstrators) select one of two objects that differed only in colour.

  4. Cephalopod - Wikipedia

    en.wikipedia.org/wiki/Cephalopod

    Most octopuses mimic select structures in their field of view rather than becoming a composite color of their full background. [ 41 ] Evidence of original coloration has been detected in cephalopod fossils dating as far back as the Silurian ; these orthoconic individuals bore concentric stripes, which are thought to have served as camouflage ...

  5. Octopus - Wikipedia

    en.wikipedia.org/wiki/Octopus

    Octopuses have a food conversion efficiency greater than that of chickens, making octopus aquaculture a possibility. [161] Octopuses compete with human fisheries targeting other species, and even rob traps and nets for their catch; they may, themselves, be caught as bycatch if they cannot get away. [162]

  6. Giant octopus wrestles stunned diver - AOL

    www.aol.com/news/2014-02-18-giant-octopus...

    The octopus saw the divers before the divers saw it because the color-changing animal was perfectly camouflaged to match a pink and yellow rock. The shy but very curious octopus wrapped all eight ...

  7. Atlantic pygmy octopus - Wikipedia

    en.wikipedia.org/wiki/Atlantic_pygmy_octopus

    The Atlantic pygmy octopus (Octopus joubini), also known as the small-egg Caribbean pygmy octopus, is a small species of octopus in the order Octopoda. Fully grown, this cephalopod reaches a mantle length of 4.5 cm (1.8 inches) with arms up to 9 cm (3.5 inches) long. [ 2 ]

  8. Sweet Friendship Between Octopus and Pufferfish Is ... - AOL

    www.aol.com/sweet-friendship-between-octopus...

    Octopuses also have strong beaks that they could bite a human with. With the exception of the blue-ringed octopus all octopus bite with their large beaks and inject venom, but the venom is not fatal.

  9. The blue-ringed octopus could kill a human with one of its venomous bites. Do you know the difference between an octopus and a squid? They look very similar but there are two main differences ...