How can penguins stay breathless for long periods of time?
Myoglobin is a protein that exists in the muscles of this creature at high levels. These myoglobin proteins tie up high levels of oxygen molecules to themselves and hide them. So the oxygen required by the living being is hidden not in the air in lungs but directly in muscles. By this means, penguins can swim for a long time without breathing and can dive as deep as they want. Who do they not experience nitrogen narcosis? Penguins can continue swimming even if the oxygen in their blood is at the lowest level. Human beings suffer from depth intoxication in that case. This level is 20 mm Hg for penguins and 25 mm Hg for human beings. However, scientists have not been able to explain how penguins can jump on ice when in water, without being affected by blood pressure. How can they go without food for 65 days? There is a secret behind male penguins standing up for 65 days in order to protect t their eggs without eating anything. They have a special structure, which blocks their digestive s
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