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BLUE RINGED OCTOPUS Marine Life Protection Silver Coin 5$ Palau 2012


These attractive coins from Palau feature a multi-color images of Blue Ringed Octopus, it’s one of the most venomous creatures in the sea. The coin is part of a series celebrating "Marine Life Protection".

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Blue Ringed Octopus
The intensive blue-ringed colouring makes the octopus shine in the Pacifi c Ocean. However, it’s venom is one of the most fatal in the world.
The venom of the blue ringed octopus is created by bacteria in the salivary glands and is enough to kill an adult human. In fact, the palm-sized octopus carries enough venom to kill over twenty adult humans in a matter of minutes. The venom is capable of causing complete motor paralysis and respiratory arrest, both of which lead up to cardiac arrest.
Although the blue-ringed octopus only reaches a maximum body length of about 50 millimetres it is one of the most poisonous animals in the world. By nature very shy, high tides sometimes wash it into small pools and salt water accumulations where it hunts small crabs and live clams. This is where unaware humans fi nd them, pick them up and get bitten by the cephalopod. The bite itself is not very painful but after only a few minutes, amongst other symptomes, paralysis of the pectoral muscle occurs which can lead to respiratory failure. Sometimes people even tease the octopus deliberately because they only show their intensive colouring when they are under stress.
Blow fish also possess the bite-injected poison (Tetrodotoxin) which takes a strong effect on the nervous system and paralyses it. The blue ringed octopus does not produce its poison itself but rather is produced by germs in its intestine and its salivary glands.
Shortly after mating, the male dies, whereas the female dies after the eggs hatch. The female only lays eggs once in her lifetime.

  • CountryPalau
  • Year2012
  • Face Value5 Dollars
  • MetalSilver
  • Fineness (purity)925/1000
  • Weight (g)25
  • Diameter (mm)38.61
  • QualityProof
  • Mintage (pcs)1.500
  • Certificate (COA)Yes
  • Presentation case (box)No
The obverse depicts the blue ringed octopus with coral reef of the Pacific Ocean. The reverse shows the Palau State Coat of Arms.