Sonntag, Februar 05, 2006

Why do pengiuns not get cold feet standing on the ice the whole day?


Cold feed would be very unpleasant for the penguin. But he has got a method to avoid them. As every mammal he has got a bloodstream. Warm, oxygenated blood fleets in the extremity of the penguin like the feet. But now their is the special trick of the penguin. The warm blood circuits round the cold,from feet coming blood. So the sorts of blood get an equal temperature.So the penguin doesn't recognizes that he has got cold feet. And there is another trick the penguin uses to survive on the cold ice. He can control the Volume of the blood fleeting to his feet. If it is cold he minimizes stream of blood fleeting to his feet. So they are less supplied with blood and his blood cannot get cold and so he can use it to warm his body which is, because of his vital parts, much more important. After a period of cold the penguin he maximizes the bloodstream to his feet again. The penguin of course doesn't know about this trick, because it is controlled in his subconsciousness.
So the penguin sometimes gets cold feet but he doesn't know it.