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Octopus - Wikipedia, the free encyclopedia en.wikipedia.org
reproduction is a cause of death
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The main colouring agent of the ink is melanin, which is the same chemical that gives humans their hair and
skin colour.
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specialized skin cells which can change the apparent color, opacity, and reflectiveness of the epidermis
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Octopuses can use muscles in the skin to change the texture of their mantle in order to achieve a greater camouflage
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A few species, such as the
Mimic Octopus, have a fourth defense mechanism. They can combine their highly flexible bodies with their color changing ability to accurately mimic other, more dangerous animals such as
lionfish,
sea snakes, and
eels remove
it does not form a
mental image of the overall shape of the object it is handling. It can detect local texture variations, but cannot integrate the information into a larger picture.
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Jet propulsion is their fastest means of locomotion
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octopi is often objectionable
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some people keep them as pets
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open the covers of their aquariums and survive for a time in the air in order to get to a nearby feeder tank and gorge themselves on the fish there
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300 recognized octopus
species, which is over one-third of the total number of known cephalopod species
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it does not form a mental image of the overall shape of the object it is handling. It can detect local texture variations, but cannot integrate the information into a larger picture remove
squeeze through very narrow slits
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does not possess stereognosis; that is, it does not form a mental image of the overall shape of the object it is handling. It can detect local texture variations, but cannot integrate the information into a larger picture remove
octopi is often objectionable remove
gives the blood a blue color
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