Friday, August 1, 2014

Why octopus never gets tangled tentacles

Why octopus never gets tangled tentacles
The Point.fr - Published 05/23/2014 at 6:04
Researchers have discovered the secret of the agility of the amazing Octopus: its secret weapon is hidden in his skin. Explanations.

Why octopus never gets tangled tentacles
© JENS KALAENE / DPA / dpa Picture-Alliance / AFP
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By CHLOE DURAND-PARENTI
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Even though he has eight arms, mush, which he hardly knew, octopus - or octopus - never tangled brushes. Fortunately for him, however, for, as its suction cups tend to cling to anything that comes within reach of its tentacles, the poor animal would quickly end up in a ball of knots. But how does it do? Researchers at the Hebrew University of Jerusalem have studied the issue and come to deliver at least part of the secret of the animal in the scientific journal specializing Current Biology .

First, you should know that the nervous system of the octopus has not much to do with that of a human being. Where our brain - our central nervous system - focused decision making, the peripheral nervous system of the octopus is much more independent. So, when you cut the tentacle of an octopus, the arm detached from the body that used to be its own continues to operate alone for nearly an hour master. As for the animal amputated, a new arm eventually push him. In an attempt to unravel the mystery of agility Octopus , the Nesher led by Nir Levy and Guy scientific team decided to conduct a series of experiments on octopus amputees as well as amputated limbs. And the results are amazing.