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The deep-see octopus is the most self-sacrificing mother... 
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Ex-MYT
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Joined: 26 Apr 2012, 18:10
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Hi everyone :)

I found a very interesting article I would like to share with you. it was originally Hungarian so I translated it. I hope you will like it :)

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The deep-see octopus is the most self-sacrificing mother in the world

Female maritime octopuses usually live for about one or two years. During their life they lay eggs only once. The thing goes on very similar to birds. The octopus sits on the eggs sorted in nest, protects them of predators and helps the oxygenation by flowing the water. But a big difference that the mother eats very bit or not at all during the 1-3 months until the eggs are hatched. This is very serious itself, but the mother self-sacrifice knows no bounds at deep-sea octopuses.

In the deeper layers, life circumtances are even evil with less food, and it's darker, colder so animals living here have slower vital functions. These animals are hard to examine without disturbing them. The growth of deep-sea octopuses were observed by the Californian Monterey Bay Aquarium's experts and they noticed astounding things.The scientists had luck as they found a freshly layed eggs hatching octopus which they could easily recognise later on, because she was wearing characteristic scars on her arms. The animal was a sort of Graneledone boreopacifica that is barely 10 cm. The nest with 160 eggs (this is quite a few as there are octopuses who lay 50-60 thousands of eggs) was nearly 2 thousand meters deep in the Pacific ocean on a vertical cliff, where the scientist regularly went back to check the animal's condition.

The observation took almost 4 and a half years, exactly 53 months. During this period, the animal never left her nest and never ate and the eggs were evolving very slow. She didn't accept the food that was brought to her by the submarine's robot arm. In the oceanagraphers' oppinion in the 3-degree-water the octopus' vital functions as well as the little ones' evolve became extremely slow. The mother was nearly in hibernation condition. That is the reason she could survive so long without food. During the years the animal lost her high claret colour, became grey, lost weight, shrank and became ghost-looking. Meanwhile the eggs grow double size, and since the 40th month, the little octopuses inside became quite visible.

53 months after the first observation the scientist found the nest empty. The eggs were hatched, the little octopuses were swimming. The mother was never found, she died most likely when her children were born.



[Plus, I found a video about an octopus fleeing from a flatfish. It's Hungarian, but you can see the essence]

http://indavideo.hu/video/Az_elet_torte ... ideoplayer

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Mazso


14 Apr 2016, 14:38
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Thanks for sharing Maz m8y.... :D


16 Apr 2016, 08:20
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