Blog session 6

I love marine animals, this are my favorite animals in the world. One that I love is the nautilus, a cephalopod mollusk. It's body consists of a large shell with golden spiral proportions and tentacles emerge from it. Its name comes from Greek and means sailor. Is believed to be as old species that has existed since the time when dinosaurs were on earth and that is the only species that has not changed for over 200 million years. Nautilus uses a simple system to float , absorb air dissolved in the water swallowing through four gills, where it passes through a tube called siphunculus , linking all cameras thus regulating buoyancy. It also supports quite well the lack of oxygen, thus you can swim in very deep water .
Sometimes I imagine that the nautilus is the document of all matter naturally exists on earth, that's why they have lived so long and one day tell us everything they have seen , when we are ready to listen . I also think that if they were extinct by man would be extremely disappointing as we as a species have survived so many changes in the earth that would be the height that man extinguished