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Gurita.
#1
Mengapa gurita dapat berkamuflase di batu-batu karang dan dapat mengeluarkan tinta yang berwarna hitam pekat.
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#2
(30-03-2017, 07:45 PM)JohnBennett Wrote: Mengapa gurita dapat berkamuflase di batu-batu karang dan dapat mengeluarkan tinta yang berwarna hitam pekat.
karena gurita punya strategi pertahanan hidup yang namanya mimikri, kayak bunglon gitu..
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#3
wow,that's awesome.
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#4
but octopus is dangerous too because it can squeeze us like a fish.
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#5
Octopus
From Wikipedia, the free encyclopedia
This article is about the order of cephalopod. For other uses, see Octopus (disambiguation).
Octopus
Temporal range: 323.2 – 0 Ma
PreЄ
Є
O
S
D
C
P
T
J
K
Pg
N
Late Carboniferous – Recent
Octopus2.jpg
Common octopus
(Octopus vulgaris)
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Coleoidea
(unranked): Neocoleoidea
Superorder: Octopodiformes
Order: Octopoda
Leach, 1818[1]
Suborders

Cirrina
Incirrina

Synonyms

Octopoida
Leach, 1817[2]

The octopus (/ˈɒktəpʊs/ or /ˈɒktəpəs/) is a cephalopod mollusc of the order Octopoda. It has two eyes and four pairs of arms and, like other cephalopods, it is bilaterally symmetric. It has a beak, with its mouth at the centre point of the arms. The body is made of soft material with no internal or external skeleton and can alter its shape, appearance and colour with great rapidity, enabling the octopus to squeeze through small gaps. The mantle cavity is used both for respiration and for locomotion, by expelling a jet of water. Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviourally diverse of all invertebrates.

Octopuses inhabit diverse regions of the ocean, including coral reefs, pelagic waters, and the seabed; some occur in the intertidal zone and others at abyssal depths. Most species grow fast, mature early and are short-lived. During breeding, the male uses a specially adapted arm to deliver a bundle of sperm direct into the female's mantle cavity, after which he goes into a decline. The female deposits fertilised eggs in a den and cares for them until they hatch, after which she also dies.

Octopuses have numerous strategies for defending themselves against predators, including the expulsion of ink, the use of camouflage and deimatic displays, their ability to jet quickly through the water, and their ability to hide. They trail their eight arms behind them as they swim. All octopuses are venomous, but only one group, the blue-ringed octopuses, is known to be deadly to humans. Around 300 species are recognised.

Octopuses appear in mythology as sea monsters like the Kraken of Norway and the Akkorokamui of the Ainu, and probably the Gorgon of ancient Greece. A battle with an octopus appears in Victor Hugo's book Toilers of the Sea, inspiring other works such as Ian Fleming's Octopussy. Octopuses appear in Japanese erotic art, shunga. They are eaten in many parts of the world, especially the Mediterranean and the Asian seas.
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#6
biasanya gurita tinggal di dasr laut dan dia makan ikan kecil.
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#7
Gurita itu gak ada tulang, kan ?
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#8
tidak ada dewa,gurita tidak punya tulang.
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#9
Jadi ingat squidward tentacle..
temannya spongebob..
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#10
iya...dan dia pemarah.
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